- Preheat oven to 350F, spray your donut pan and set aside. 
- Mix your dry ingredients together in a small bowl. 
- Add in your egg whites, vanilla and milk and mix well. 
- Chop up your peanut butter cups into very small pieces, add half of them to the donut batter and leave the other half aside. 
- Fill your donut pan with 6 donuts, bake in oven for 10 minutes. 
- Let cool then using a knife spread your peanut butter over the 6 donuts (I melted mine in the microwave for 30 seconds for easier spreading) then sprinkle the remaining peanut butter cup pieces on top. Each donut is 5sp or 3pp 
- Nutritional info, per donut .. Calories 130...Fat 3.3g... Saturated fat 1.1g... Carbs 22.5g.. Fiber 1.1g... Sugars 12.5g...Protein 3.1g