Subscribe to Skip to my Lou posts
and receive them in your email inbox!

    How to make Gak (Slime)

    Posted by  ·  July 24, 2009

    We had a few days of rain around here so we made some slime to occupy our time inside. Just two ingredients and you will be able to really impress your kids!


    To make simply mix equal parts of liquid starch and glue together.

    We placed 1/4 cup liquid starch into a sandwich bag and added about 3 drops of green food coloring.


    Next add in 1/4 cup glue


    Mix well. It will start to form a solid blob. There might be a  bit of liquid that will not mix in, just remove the blob of slime and discard the bag with the extra liquid.


    Take it out of the bag and have fun!


    Looking for more ways to impress your kids? Try making oobleck!

    Need a way to use up the rest of the starch? Try making some marbleized paper.

    You will find other rainy day activities here.


    Thanks Laci for asking us how to make Gak. The list of submitted DIY questions is getting long, but I love reading the requests and learning what interests Skip to my Lou Readers!  If you have a DIY question you can fill out the form in the left sidebar and hit go. Thank You!

    Filed Under: Uncategorized

    Leave a Comment


    1. Letty
      Thursday, January 19th, 2017
      I tried this recipe, to no avail. It didn't work. I mixed and mixed for almost an hour, and it never became thick. Could you maybe help me? Thank you.
    2. Barbara Pabst
      Thursday, June 9th, 2016
      I used a bit of water and less Starch. Turned out great! Using this as cave slime craft for our VBS. Going to try Glow in the dark slime!
    3. Monday, March 30th, 2015
      So cute. gonna try this!
    4. Tuesday, March 3rd, 2015
      Hi, yeah this article is really pleasaant and I have learned lot
      of things from itt regarding blogging. thanks.
    5. Emily ragan
      Thursday, June 26th, 2014
      I loved this trick, it worked and now we have some fun goo to play with
    6. Sunday, April 20th, 2014
      i have to try this for miy kiddo. he will love it =)
    7. Nola
      Sunday, March 2nd, 2014
      Thanks for this, i just don't know where to get the Liquid Corn Starch. Sugestions!?
      • Monday, March 3rd, 2014
        Nola, You can find liquid starch in the laundry section at a grocery store. Hope this helps!
    8. Sunday, October 13th, 2013
      thigh attached to each other, breasts, wings and backbone.Prepare the stock: In a large pot over medium heat, warm 1/2 cup of the olive oil. Sauté the wings and backbone until slightly browned on all sides. Deglaze with 3/4 cup of the wine, and add 8 cups of the water. Simmer for 1 hour over medium heat to make a light broth. Strain and set aside. Prepare the capon: Season the rest of the capon pieces with salt and pepper. In a large skillet with high sides, heat 1/2 cup of the oil and add the capon. Sauté gently on all sides until pale golden. Remove the capon, and reserve on a platter. Add the vegetables to the pan, and sauté just until warmed through. Deglaze with the remaining wine, and put the capon pieces back into the pan on top of the vegetables. Add enough of the capon broth to cover. (If there isn't enough stock, add the remaining water until you have enough liquid.) Bring to a simmer, cover, and cook until the meat falls off the bone, about 35 to 40 minutes. Carefully lift out the capon pieces and the vegetables, and store them in separate bowls. Raise the heat under the skillet, and reduce the cooking liquid by half.Meanwhile, remove the capon meat from the bones. When the liquid has reduced, place the meat back into the broth. Stir in the remaining 1/2 cup olive oil, and adjust the seasoning. Serve a scoop of the vegetables topped with the capon meat and broth. Shave some white truffle over the top of each serving. Serves 6Recipe courtesy of Italian Cooking & Living magazine.This article was originally distributed via PRWeb. PRWeb, WorldNow and this Site make no warranties or representations in connection therewith.SOURCE: Creative Agency Will Donate $23,903 to City of Refuge Catering Program(PRWEB) September 24, 2013 is proud to announce its grant recognition by Sappi North America's Ideas That Matter aimed at encouraging visual artists to create and implement integrated projects for charitable and nonprofit organizations in their communities. Since 1999, Sappis competition for good will has awarded over $12 million worldwide in grants around the globe to support their work for nonprofit programs and organizations.City of Refuge is a community- and ministry-driven organization that serves Atlanta's most impoverished families through physical, mental and spiritual rebirth. Its 180
    9. Saturday, October 12th, 2013
      the Diaspora.? Haaretz Daily Newspaper Ltd. All Rights ReservedNews: Jewish World: Culture: Blogs: Design by Accelerated by, the online edition of Haaretz Newspaper in Israel, and analysis from Israel and the Middle East. provides extensive and in-depth coverage of Israel, the Jewish World and the Middle East, including defense, diplomacy, the Arab-Israeli conflict, the peace process, Israeli politics, Jerusalem affairs, international relations, Iran, Iraq, Syria, Lebanon, the Palestinian Authority, the West Bank and the Gaza Strip, the Israeli business world and Jewish life in Israel and the Diaspora.? Haaretz Daily Newspaper Ltd. All Rights ReservedThe case for our right to be called
    10. Sarah
      Tuesday, July 23rd, 2013
      Super disappointed in this!! The glue didn't take on the color. And it was really wet still- not like the slime I remember as a kid!!
    11. erica
      Wednesday, May 22nd, 2013
      Would it work with home-made liquid starch (corn starch and water mixture)?
    12. Brenda
      Thursday, May 16th, 2013
      My class had so much fun making this for our Science night at school, so! easy to do.:)
    13. Kayla
      Thursday, April 18th, 2013
      Add borax to the mix. The ratio is 2 parts glue, 1 part starch, and 1 part borax. The more borax the harder it becomes.
    14. Kerrie
      Friday, March 29th, 2013
      I made this today for my boys ages 3 & 4 they loved it but it is still too sticky even after playing with it for a while. Is there anyway to speed up the process of making it less sticky?
    15. Friday, March 8th, 2013
      My sister was just telling me about this! Fun!
    16. Meg
      Friday, February 8th, 2013
      We made this tonight and I thought it wasn't working either. It was VERY "WET" when we took it out of the bag and it stuck to our hands a lot. But the more we played with it the better it got! Very messy but my boys (ages 5 & 8) LOVED it!!
    17. Cass
      Wednesday, January 16th, 2013
      I'm surprised! We made this tonight and we're
      Very disappointed as it didn't come out. We used
      1/3 cup Elmer's glue and 3 drops of red food coloring
      And then added 1/3 cup of liquid starch. It never
      Formed a ball. We kept mixing and mixing in the
      Baggie. Sigh. I'm sure I missed something.
    18. Jerri Orcutt
      Sunday, January 13th, 2013
      I have been looking for projects to do with the girl that I mentor in school. I am going to try making the slime with her. Looks fun.
    19. Jewel
      Thursday, January 3rd, 2013
      I use to do this in the Art Room when I was in High School all the time. Just throw a little acrylic paint in there instead of food coloring, it all works the same.
    20. Dolly
      Thursday, January 3rd, 2013
      Ewwwwwww......soooo cool .....; )
    21. Thursday, August 30th, 2012
      Great idea...Im a new follower and posted this on my track back to your site..

    22. Georgie
      Friday, July 27th, 2012
      Does clag school glue work or does it have to be more of a wood glue consistency?
    23. Extreme?
      Tuesday, June 26th, 2012
      I found this recipe because I was looking for a GAK recipe without using Borax. Borax is a poison and I am not comfortable with my children handling it. I looked up the ingredients of this brand of liquid starch and it contains Borax. I wanted to let other moms know in case they were interested. You can make home-made liquid starch with corn starch.
    24. Wednesday, May 16th, 2012
      I just made this with three children - we used fine glitter instead of food coloring and at first I thought it was horrible - it was very stringy and didn't stick together at all, plus it was super... "juicy" I guess is the word. But I kept kneading it for brief periods and washing my hands in between, letting it sit for a little while, and after a while the consistency was excellent. I think the trick is to get the extra liquid off and then it's good. Just for comparison's sake I live almost at sea level in a dry climate and I used Sta Flo brand liquid starch and Elmer's glue. It turns out a four ounce bottle yields just over a third of a cup (it should be half a cup because 4 oz is 1/2 c, but I guess it sticks to the inside and you don't get that much out unless you're REALLY patient). So if everyone has their own 4 oz bottle of glue you can just measure out the starch and then have everyone squeeze their glue into the bag. You could use the bag in a cup trick to hold it upright so it doesn't spill.
      Also - if you have extra liquid just add more glue to it and you'll get more gack! It worked for me.
    25. M. Dwyer
      Sunday, May 6th, 2012
      My 8 year old has to do a "How to" demonstration in front of the class. He is going to have the entire class join in on the fun and make it at the same time. We tested several methods and this one was best for the whole group demonstration- all you need is Sta Flo, Elmer's Glue, food color and a baggie (or two). Don't forget to mix and mix and mix! We then needed to drain the left over water/ingredients and place in another clean bag. He can't wait to share it at school!
    26. Tim
      Monday, April 16th, 2012
      I just made this, with the exact formula (Elmer's, and sta-flo) and it didnt turn our right. I bought real gak from target last week, and decided to make some on my own.i feel like its missing another ingredient. It smells like gak, but it's harder and less like slime than the real stuff. Don't get me wrong it's still fun to make, but don't expect it to be exactly like the original
    27. Lindona
      Saturday, April 14th, 2012
      um i dnt have liquid starch so i kinda put water in the cornstarch nd waited for a few seconds then added the glue but i dnt think it worked nd i hav no more glue so please help me!!!!!!!!!!!!!!!!!!! @o@"
    28. A and M
      Thursday, April 5th, 2012
      I played with it for hours, I would not put it down i loved playing with slimey goopy stuff and you will too!!!
    29. Monday, February 27th, 2012
      its very strange thanks everyone
    30. Sunday, February 26th, 2012
      its great thank you
    31. Saturday, January 14th, 2012
      its very funny for the kids thanks
    32. Thursday, December 29th, 2011
      I dint work...
    33. Saturday, August 6th, 2011
      very useful content thanks
    34. Sarah
      Monday, April 18th, 2011
      This one didn't work for me either - it was really lumpy... any ideas on what we did wrong?
    35. Sunday, March 27th, 2011
      thats perfect (: thanks
    36. Monday, March 7th, 2011
      weird but looks fun. better do it. most people says it dosent work so lets see!!1
    37. Saturday, July 17th, 2010
      This mixture didn't work for me at all. I almost doubled the amount of glue and it still was just liquid. I live in the mountains with high humidity and wonder if that could affect the result. I'm not giving up though and will try a few more mixtures.
    38. Wednesday, June 9th, 2010
      Anyone know how to make your own liquid starch?
    39. Thursday, June 3rd, 2010
      AWE-SOME! My 8 year old son will LOVE this!!!!
    40. Lisa
      Sunday, April 25th, 2010
      CORRECTION to previous comment-- I figured it out! After combining the mixture for about 15 minutes (OK so my little one did this) I walked away to check and see if I had left out a step and to my surprise when we got back it was slime!!! YEAH!!!
    41. Leigh
      Friday, April 9th, 2010
      I'm curious, there are only posts of people who have not tried the recipe yet, but are super excited to try it. I need a review of someone who has tried it and loved it as well...I'm going to try it tomorrow, but I have two different that uses the starch, and one that uses borax. Do you know which turns out better? or the difference?
    42. Maria lrms '14
      Thursday, March 25th, 2010
      this is what we are going to make in class on monday. cant wait (:
    43. Trina
      Tuesday, January 19th, 2010
      Does it matter the kind of glue that you use? Elmer's or Rose Art?
    44. Sunday, January 3rd, 2010
      I totally used to make this when I was young! SO fun. I never would have remembered how to make this. thanks! There are a ton of other fun things on your blog, can't wait to get started!
    45. Elaine White
      Saturday, November 21st, 2009
      We made slime today for my son's 5th birthday.It was themed "Ben 10", so we called it Alien slime and put a big goggle eye in it and let them put it in green plastic easter eggs to keep. I found that it had alot of left over liquid. I was afraid we had done it wrong, but it was all good once we drained the fluid away. the kids loved this activity we dyed it neon green.
    46. nancy
      Tuesday, October 13th, 2009
      I want to make this for a Halloween party as a give away and wanted to know how long the GAK would keep in a sandwich bag if I make it in advance???
    47. Tanya
      Thursday, August 13th, 2009
      I made this yesterday and I swear my kids played w/it for HOURS!! I was one happy mom. :)
    48. Thursday, August 6th, 2009
      Great post Cindy! The moose M.D. just gave it a feature at the baby blog.
      Thanks again for another fun project!
    49. Saturday, August 1st, 2009
      Hey! I found you guys through the SITS network. I'm not a mommy (yet) but I'm the proud aunt and cousins to children I love as my own. We'll be making this Monday!!
    50. Thursday, July 30th, 2009
      Awesome! I remember Gak-I loved that stuff! I'll have to try (and link) this!
    51. Monday, July 27th, 2009
      I have been searching for this recipe for years! I made it 15 years ago when I was in Advance Child Development and the recipe got lost after school was out. I kept looking for it and never found it. Thanks so much for posting!
    52. Julie E.
      Friday, July 24th, 2009
      I couldn't find any liquid starch today except in a spray bottle (one store had non-aerosol). Does that work? If not, where do you usually find it?
      • Friday, July 24th, 2009
        I bought the liquid starch at Wal-Mart and I have also found it at Dillons (King Sooper). It is with the laundry supplies.
    53. Friday, July 24th, 2009
      We LOVE this stuff! My hubby will spend hours squishing this stuff while he watches TV. The first time we made it, my 2 yr old played with it all afternoon and it was the longest she had ever played with anything other than her dolls!
    54. Friday, July 24th, 2009
      Ewww!! My son isn't old enough for this yet, but I might make some for myself. :)
    55. Friday, July 24th, 2009
      this looks so fun! you always have great ideas on your blog
    56. Friday, July 24th, 2009
      Thanks for sharing - my kiddos will love this!!!
    57. Friday, July 24th, 2009
      I have a recipe on my site for clean slime, it's VERY similar but uses cornstarch just like oobleck. I love giving this stuff as gifts....I think it makes other moms mad, the ones that don't like there kids playing with cool stuff. You know what i"m talking about!
    58. Friday, July 24th, 2009
      You read my mind, I have been looking for a reliable gak recipe all week and wasn't sure the ones I found would work. Thanks! And this is the first time I have posted on your blog so I also want to tell you I really appreciate all the other ideas you share.
    59. CatieLee
      Friday, July 24th, 2009
      if "There was a bit of liquid that would not mix in." what did you do with it?
      • Friday, July 24th, 2009
        Just throw any extra liquid away.
    60. Julie E.
      Friday, July 24th, 2009
      I have four boys ages 3, 5, 9 & 11... I can't believe I haven't made this yet! I'm off to the store to buy the starch. Thanks for the idea!