2-Minute Peanut Butter Cake (Printable)

Instantly prepare a moist and fluffy mug cake with creamy peanut butter and simple pantry staples.

# What You'll Need:

→ Wet Ingredients

01 - 2 tbsp creamy peanut butter
02 - 1 tbsp unsalted butter, melted
03 - 1 large egg
04 - 2 tbsp milk (dairy or non-dairy)
05 - 1/2 tsp vanilla extract

→ Dry Ingredients

06 - 3 tbsp all-purpose flour
07 - 2 tbsp granulated sugar
08 - 1/4 tsp baking powder
09 - Pinch of salt

# How to Make It:

01 - In a large microwave-safe mug, mix the peanut butter and melted butter until smooth.
02 - Whisk in the egg, milk, and vanilla extract using a fork until fully combined.
03 - Stir in the flour, sugar, baking powder, and salt until just combined without overmixing.
04 - Microwave on high for 60 to 75 seconds until the cake has risen and the center is set. Avoid overcooking.
05 - Allow the cake to cool for 1 to 2 minutes before enjoying directly from the mug.

# Expert Tips:

01 -
  • It's genuinely faster than waiting for the oven to preheat, so dessert won't feel like a project.
  • The peanut butter flavor is bold and satisfying without tasting artificial or thin.
  • You can make it in whatever mug you're drinking coffee from, so there's barely any cleanup.
02 -
  • Don't overmix after adding the dry ingredients—it's the number one reason this cake comes out tough instead of fluffy.
  • Your microwave's power matters; if yours runs hot, start at 60 seconds and add 10-second bursts until the center sets, because overcooking will turn it rubbery.
03 -
  • Mix your wet and dry ingredients separately before combining them together—it takes an extra 15 seconds but guarantees better texture.
  • If you like it fudgier, reduce the time to 50 seconds; if you prefer it more cake-like, go closer to 75 seconds.
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