Splendid Chocolate Frosty

Start whipping heavy cream with mixer. Add vanilla. When soft peaks form, add cocoa mix slowly, and continue beating until hard peaks form (only another 30 seconds or so). Put mixture in freezer. After 30 minutes, stir with fork to break up frozen parts around edges. Keep checking after about 20-30 minutes, and stir until it's cold enough and the right consistency. Tastes like a Wendy's Frosty. (Total 16.1 carbs - serves 3@ 5.4 ea.)