Peanut Butter Cookie in a Mug Recipe

In under 5 minutes, this delicious single-serve gluten-free peanut butter cookie in a mug is excellent for one or two people!

– ▢1 Tbsp unsalted butter* – ▢3 Tbsp creamy peanut butter – ▢2 Tbsp pure maple syrup – ▢1 egg yolk – ▢½ tsp pure vanilla extract – ▢2 ½ Tbsp gluten-free all-purpose flour or regular all-purpose flour – ▢⅛ tsp sea salt


Heat the butter in a cup that is safe for the microwave for twenty to forty seconds to melt it.

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I create the cookie dough in a small dish or measuring cup and transfer it to a microwave-safe mug or ramekin with a rubber spatula.

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The entire process can be done in a cup, reducing mess. Stir in the peanut butter, pure maple syrup, egg yolk, and vanilla essence.

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To make peanut butter easier to stir, microwave with butter if cold from the fridge.Mix in gluten-free all-purpose flour and sea salt. 

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This is normal—the mixture will be thin and not like cookie dough! You can sprinkle chocolate chips on top or mix them into the batter.

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Heat on high (the microwave's default setting) for 45–60 seconds until set. Try 45 seconds and microwave longer if needed. 

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Before consuming the hot peanut butter cookie, let the mug cool. Even brittle cookies melt. Try microwave peanut butter cookies with milk or ice cream.

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Also See

Healthy Carrot Cake Bread Recipe