Clay
["2 c. salt", "2/3 c. water", "1 c. cornstarch", "1/2 c. cold water"]
["Mix salt and 2/3 cup water together.", "Stir over heat 3 to 4 minutes.", "Remove from heat and add cornstarch and 1/2 cup cold water; stir until smooth.", "If it's runny, keep cooking until it congeals."]
["salt", "water", "cornstarch", "cold water"]