Email to Leah Robinson Peppermint Cooler Recipe Introduction Makes six servings. List of Ingredients 3 tbsp cocoa 1/3 cup sugar 3 tbsp boiling water 6 cups milk 1/2 tsp peppermint extract Instructions Blend together cocoa and sugar; add boiling water. Mix until free of lumps. Add milk and peppermint extract; beat until blended. Pour into tall glasses and serve with sprigs of mint.