Chocolate Play Dough (Inedible) - cooking recipe

Ingredients

2 cups all-purpose flour
1 cup salt
1/2 cup cocoa powder
2 tablespoons vegetable oil
2 tablespoons cream of tartar
2 cups boiling water
4 drops glycerin (Optional for increased shine and stretch)

Preparation

Combine all dry ingredients in a bowl.
Stir in the vegetable oil.
Stir in the boiling water (adult only) and mix until combined.
When the dough has cooled a little, knead it on a clean surface until it loses all stickiness and becomes smooth and stretchy. No residue should come off on your fingers. If it is still sticky, add a little more flour. If it's too dry and crumbly, add more water (a tablespoon at a time).