1/4 cup hot water
1 and 1/2 Tbsp. unsweetened cocoa
4 pkg. sugar substitute (Splenda, Equal, or equivalent amount of stevia)
2 cups FF milk
Take about 1/4 c hot water and stir in 1 and 1/2 tbsp of baking cocoa and 4 packs of sugar sub. until well blended. Cool. Then put in the blender with 2 cups ff milk. and ice cubes. Blend till looks like a milk shake. I kept adding ice till I got the consisitancy I wanted.
It was pretty good.