Chalk - cooking recipe

Ingredients

2 Tbsp. plaster of Paris
2 Tbsp. water
food coloring if desired

Preparation

Mix water and plaster in paper cup (add a few drops food coloring if you like).
Pour mixture into a small plastic bag. Roll down top edge of bag, molding mixture into tube shape.
Clip closed bag to a clothesline or hanger.
Wait a day for the plaster to harden.
Unwrap and let dry another day or so before using.