I've found the same recipe but with standard oven cooking times for those who don't use a crock pot.
1 cup instant biscuit baking mix
1 cup sugar, divided
3 tbsp. plus 1/3 cup cocoa, divided
1/2 cup milk
1 tsp vanilla
1 2/3 cups hot water
Mix biscuit mix, 1/2 cup sugar and 3 tbsp. cocoa in 8 x 8-inch glass baking dish. Stir in milk (you can use skim milk if you think it will help) and vanilla until blended. Sprinkle with remaining 1/3
cup cocoa and 1/2 cup sugar. (Do not stir.) Pour water over top and DO NOT STIR! Bake at 350° for 40 minutes. Top will look and taste like a brownie.
Underneath is this heavenly chocolate syrup. Spoon in dessert dishes and top with whipped cream.