Prep Time 15 minutes mins
Cook Time 18 minutes mins
Resting Time 20 minutes mins
Total Time 53 minutes mins
For best texture, avoid overmixing the batter after adding the flour, as this can make the cupcakes tough instead of fudgy; slightly underbaking them yields a gooier brownie center, while a minute or two more gives a cakier crumb, so watch them closely near the end and use the toothpick test. If your kitchen is warm, chill the batter for 5–10 minutes before baking to help maintain a domed top, and rotate the pan halfway through baking for even cooking. Let them cool fully before storing in an airtight container to prevent condensation, and warm leftover cupcakes for 5–10 seconds in the microwave to revive their just-baked softness.