Those of you who have followed the blog for quite some time will remember that two years ago we discovered a way to make slime using laundry detergent.  And with the help of our UK readers, we were able to get feedback on local detergents that worked to make slime.  However, as time has gone on, I've heard more and more reports about the detergents not working and one reader (thanks, Leigh!) recently informed me via our Facebook page that she called Aldi and they said they've changed their detergent ingredients.  Because of this, we were inspired to try to find a NEW way to make slime that would work for our UK readers.  Based off of a tip from another reader, Sarah Hawthorne, who has been SO helpful throughout this whole slime investigation, I wanted to look into Kershaw's Laundry Starch Powder.  And I was THRILLED to find that I could get some shipped here to the US so that I could make you all a proper tutorial!

Below you will find our latest and greatest recipe for making slime (this is intended for readers in the UK -- if you are in the US or Canada, I recommend reading this post instead):

First you will need a bottle of PVA glue.  Our US bottles come in 4 oz (118 mL) sizes and that's what I've used here.  (There's some wiggle room in the recipe and in the UK it looks like PVA glue comes in all sorts of sizes, so just get as close to this amount as you can)

Empty the whole bottle into a container/bowl.  Add any coloring you'd like and stir until the color is evenly distributed:

Next, add two tablespoons of very warm water to another container.  Add 4 teaspoons* of Kershaw's Laundry Starch Powder and stir until it's completely dissolved.  The mixture will look a bit like milk:

Then add 6 teaspoons* of the milky starch-water mixture to your glue and stir very well.  After a minute or two, your glue will begin turning to slime.  It should look like this:

*If your slime does not look like that you may need to add more.  Apparently US teaspoons are a bit bigger than UK teaspoons, so you may need to add a few additional teaspoons....

And now it's time to fine tune your recipe.  Grab up the glob of slime and start kneading and mixing it by hand.  If after a minute or two of kneading it is still very sticky and sticking to your fingers, dribble another teaspoon of the starch-water mixture over it and continue kneading.  If, on the other hand your slime is too firm and not stretching, add a dollop of PVA glue and knead it in.

Adding more starch-water mixture will make your slime less sticky and more firm.

Adding more PVA glue will make your slime looser and more stretchy.

Keep your slime stored in an airtight container when you are not using it.  Your slime should keep for several weeks.  If it starts to get too sticky, just add more starch-water mixture to it.  If it gets too firm, add more PVA glue to loosen it up.