I made three batches of playdough using Wilton food coloring (brown, yellow and blue). I love their brown food dye as it makes such a perfect brown.
2 cups flour
2 cups warm water
1 cup salt
2 Tablespoons vegetable oil
1 Tablespoon cream of tartar
food coloring (I used Wilton food coloring - brown, yellow and blue)
Place all of the ingredients in a medium size pan. (I add the food coloring into the water) Cook on medium heat and stir it until the playdough thickens. Knead the dough until smooth.