Quick Description
This High-Protein Banana Oatmeal Mug Cake is warm, fluffy, sweet, and incredibly satisfying — like a banana bread dessert in a mug, but packed with protein and made in just 2 minutes. With simple ingredients like banana, oats, and protein powder, it’s the perfect quick breakfast, snack, or nighttime treat that feels indulgent but keeps you full and fueled.
Servings & Timing
Serves: 1 large mug cake
Prep Time: 3 minutes
Cook Time: 1–2 minutes
Total Time: 4–5 minutes
Ingredients List
½ ripe banana (mashed)
¼ cup oat flour (or blended oats)
1 scoop vanilla protein powder
1 egg or 3 tbsp egg whites
1–2 tbsp milk (almond, dairy, or oat)
½ tsp baking powder
½ tsp cinnamon
½ tsp vanilla extract
Pinch of salt
Optional Add-Ins:
1 tbsp chocolate chips
1 tbsp chopped walnuts
1 tbsp peanut butter drizzle
Extra banana slices on top
Instructions
- Prep the Mug
Lightly spray or grease a microwave-safe mug to prevent sticking. - Mix Batter
Mash banana in the mug (or in a bowl for smoother texture).
Add egg, milk, and vanilla; mix well.
Stir in oat flour, protein powder, cinnamon, baking powder, and salt.
Mix until a thick, smooth batter forms. - Microwave
Microwave 60–90 seconds depending on your microwave strength.
Cake should rise and look set on top.
Avoid overcooking — it becomes dry if microwaved too long. - Serve
Eat straight from the mug or invert onto a plate.
Top with peanut butter, chocolate chips, or Greek yogurt for extra protein.
Nutrition (per mug cake)
(Based on egg + protein powder version)
Calories: 280–360
Protein: 28–35g
Carbs: 28–35g
Fat: 6–10g
Fiber: 4–6g
Benefits
High-Protein: Over 28g protein per serving.
Fast & Easy: Ready in under 5 minutes.
Warm & Comforting: Tastes like banana bread.
Healthy Ingredients: Oats, banana, and protein powder.
Perfect for cravings: Sweet, filling, and macro-friendly.
Additional Notes
Mushy center? Microwave extra 10–15 seconds.
Too dry? Add 1 extra tbsp milk to the batter.
Too dense? Use half a scoop of protein powder.
Dietary Info
High-Protein: Yes
Gluten-Free: Yes (if using certified GF oats)
Low-Fat: Yes
Dairy-Free: Yes (with plant protein + almond milk)
Vegetarian: Yes
Brief Introduction
This Banana Oatmeal Mug Cake is the ultimate quick, high-protein comfort treat. It tastes like warm banana bread fresh out of the oven — but uses simple ingredients, cooks in minutes, and supports your high-protein goals. Perfect for breakfast, post-workout, or a sweet nighttime fix.
Step-by-Step Cooking Guide
Mash Banana Smooth: Acts as natural sweetener + moisture.
Mix Wet Ingredients: Egg + milk + vanilla.
Add Dry Ingredients: Oats + protein + baking powder.
Microwave: 60–90 seconds for fluffy cake.
Top & Enjoy: Peanut butter, chocolate chips, yogurt, or bananas.
Ingredient Details & Substitutions
Banana: Natural sweetness & moisture.
Oat Flour: Makes the texture cake-like and fluffy.
Protein Powder: Vanilla works best; chocolate creates brownie version.
Egg/Egg Whites: Helps lift and bind the cake.
Milk: Keeps batter moist and soft.
Recipe Variations & Serving Suggestions
Chocolate Banana Mug Cake
Use chocolate protein
Add 1 tbsp cocoa powder
PB Banana Mug Cake
Add peanut butter to batter or drizzle on top
Blueberry Banana Mug Cake
Fold in 2 tbsp blueberries
Serving Ideas
Top with yogurt for breakfast
Add chocolate chips for dessert
Serve warm with peanut butter drizzle
Add sugar-free syrup
Storage & Make-Ahead
Leftovers: Store 1 day in fridge, reheat 5–10 seconds.
Best eaten fresh — mug cakes dry quickly.
Prep Tip: Mix dry ingredients in a jar for “instant mug cake mix.”
