Protein Mug Cake (Single Serving)
Satisfy your sweet tooth in just minutes with this fluffy, high-protein mug cake! Made with simple ingredients like protein powder, oat flour, and almond milk, it delivers 20 grams of protein in a single serving. At only 200 calories, this quick dessert or snack is perfect for anyone craving something sweet without derailing their health goals. Light, moist, and customizable (chocolate or vanilla!), it’s a guilt-free treat you can whip up in under two minutes.
Prep Time2 minutes mins
Cook Time2 minutes mins
Course: Dessert
Cuisine: American
Keyword: protein, dessert, mug cake
Servings: 1 person
Calories: 200kcal
Cost: $1.25
- 30 gram vanilla or chocolate whey protein powder
- 2 Tbsp oat flour
- 1/2 Tsp baking powder
- 2 Tbsp unsweetened almond milk (or water)
- 1/2 Tbsp cocoa powder (optional, for chocolate version)
- 1/2 Tbsp sweetener of choice
- 3 drops vanilla extract (optional)
In a microwave-safe mug, mix the protein powder, oat flour, baking powder, cocoa powder (if using), and sweetener.
Stir in the almond milk (start with 2 Tbsp; add 1 more if batter is too thick). Batter should be like cake mix—not runny, not dry.
Microwave for 45–60 seconds (watch closely so it doesn’t overflow).
Check how done it is (center should be just set, not liquid). If needed, cook another 10–15 seconds.
Top with optional berries and enjoy warm!
Approximate Nutrition (without berries)
-
Calories: ~200
-
Protein: ~20 g
-
Carbs: ~20 g
-
Sugars: ~5 g (from oat flour + small natural sugars in protein powder)
-
Fat: ~3 g
👉 This makes a light, fluffy cake in about 1 minute.
For a richer, keto-friendlier option, you can swap oat flour for almond flour (lower carbs, higher fat).