High-Protein Banana Cottage Cheese Microwavable Mug Cake

If you’ve ever been disappointed by a “high protein” microwavable mug cake that didn’t deliver on taste or protein, this recipe is going to change everything. With real, wholesome ingredients and nearly 40 grams of protein per serving, this banana and cottage cheese dessert cup is warm, gooey, and ready in minutes—no flour, no added sugar, and no baking!

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Why You’ll Love This Recipe

• No sugar, no flour – just a ripe banana, egg, cottage cheese, oats, and a touch of chocolate
• Super high in protein – over 39g per serving
• Flexible cooking options – make it in the microwave or air fryer
• Ridiculously easy – no fancy tools or prep required
• Naturally sweet from ripe bananas and just a few chocolate chips

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Ingredients (1–2 Servings)

• 1 ripe banana (about 3.25 oz / 96g)
• 1 egg
• 6 oz low-fat cottage cheese (about 170g)
• 0.25 oz (7g) chopped chocolate or chocolate chips
• 2 oz (4 tbsp) of old fashioned oats to firm up the texture

✅ Want it sweeter? Add a pinch of stevia or monk fruit sweetener

✅ Chocolate: Dark chocolate chips or chopped 70%+ cocoa bar work great

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Instructions for High Protein Microwavable Mug Cake

1. Mash + Mix

• Mash your ripe banana in a bowl.
• Beat in the egg.
• Stir in the cottage cheese.
• Add oats
• Fold in the chocolate or chocolate chips (if using).

2. Cook Your Way

Option 1: Microwave

• Pour ⅓ of the batter into a mug or ramekin.
• Microwave on high for 1½ to 2 minutes, depending on your microwave.
• It should look set on top but stay gooey inside.

Option 2: Air Fryer

• Pour batter into a small oven-safe dish.
• Air fry at 390°F (200°C) for 10 minutes until golden and just set.

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Pro Tips for Success

• Use a very ripe banana for sweetness—brown spots are your best friend.
• Cottage cheese is your protein hero! The texture might look chunky at first, but once heated, it blends perfectly into the batter.
• This recipe is naturally sweet, but you can easily scale sweetness or protein by adjusting banana size or cottage cheese amount.
• Like it firmer? Add more oats for more structure.

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Nutrition Facts (per serving)

(Makes 1 large serving or small servings)

1 small serving:

• Calories: 163
• Protein: 10g
• Carbs: 21g
• Fat: 5g

May vary slightly depending on chocolate and banana ripeness.

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Behind the Scenes: Recipe Testing

This recipe was a happy accident. I started with a banana and an egg—your classic mug cake base—but quickly realized it was lacking in protein. After several experiments (some dense, some too runny), I landed on the perfect ratio using low-fat cottage cheese. I tested both microwave and air fryer versions—both are delicious, but the air fryer version had a slightly crispier top and gooier center. Obsessed.

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Tools & Ingredients I Used

• Cottage Cheese I Recommend
• Microwave-Safe Ramekins
• Air fryer

Some links are affiliate links which help support the blog—thank you!

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✨ Final Thoughts

This is the perfect high-protein treat to satisfy your sweet tooth without compromising your goals. It’s easy, versatile, and full of flavor. Once you try this, you may never go back to the sugary mug cakes again.

Let me know in the comments: Did you try the microwave or the air fryer version?

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*Links in this blog post are affiliate links, which means at no extra cost to you, I will make a small commission if you click them and make a qualifying purchase*