Peanut butter mug cake is a craveworthy single-serving dessert

Last updated on Nov 05, 2026

Posted on Nov 05, 2026

3 min read

There are times for layer cakes, piping bags, and waiting patiently for butter to come to room temperature. (I’ve got the confetti birthday cake and Ding Dong cake recipes saved for a reason.) But more often, when you want cake, you want it approximately five minutes ago. This peanut butter mug cake is for those latter times. Made with creamy peanut butter, a handful of pantry staples, and cooked in a microwave, this mug cake goes from craving to warm, fluffy dessert with remarkably little ceremony — there’s not even any slicing involved.

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