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A single microwave blondie in a small white ramekin, one spoonful lifted out with melted chocolate chips stretching from the torn, gooey center
Low-Calorie Desserts

Blondie for one, 138 calories and a minute in the microwave

August 17, 2026 Updated September 16, 2026 Total time: 6 min Makes: 1 serving

Some nights I want dessert but not a full pan of blondies staring at me from the counter for a week, so I make one in a ramekin and it's done before the microwave even finishes beeping.

The oat flour and PB2 keep it from tasting like a science experiment, it actually eats like a warm blondie. Start checking it at 45 seconds, a batch that runs even 15 seconds too long turns rubbery fast.

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Blondie for one, 138 calories and a minute in the microwave

One ramekin, no pan left on the counter. A warm microwave blondie at 138 calories with 6g of protein, built to be eaten the minute it comes out.

Prep 5 min
Cook 1 min
Total 6 min
Yield 1 serving

Ingredients

Instructions

  1. In a small microwave-safe ramekin or mug, whisk the oat flour, PB2, allulose, baking powder, and salt together.
  2. Add the applesauce, milk, and vanilla extract. Stir until you have a thick, smooth batter with no dry streaks.
  3. Fold in the mini chocolate chips.
  4. Microwave on high for 45 to 60 seconds, until the top looks just set and no longer wet. It will firm up more as it cools for a minute.
  5. Let it sit for 1 to 2 minutes before eating, straight from the ramekin.

Nutrition (approximate, per serving)

Calories138
Fat3g
Carbs20g
Fiber2g
Sugar4g
Protein6g

Macros are per serving, and this recipe makes exactly one serving. See how these numbers are calculated.

Estimated from the ingredients listed above; actual values will vary with brands and swaps.

Tips & swaps

  • A small ramekin or oven-safe mug works best, a wide bowl spreads the batter too thin and it overcooks in seconds.
  • Start checking at 45 seconds. Microwaves vary a lot and a blondie that goes even 15 seconds too long turns rubbery.
  • PB2 keeps the peanut butter flavor without the fat of the real thing, but a scant teaspoon of real peanut butter stirred in at the end works too if that is what you have.
  • This does not keep well, it is built to be eaten right away while it is still warm.

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