Prep Time 20 minutes mins
Cook Time 18 minutes mins
Resting Time 30 minutes mins
Total Time 1 hour hr 8 minutes mins
For best results, make sure all refrigerated ingredients are at room temperature so the batter mixes evenly and the cupcakes rise uniformly, and avoid overmixing once the dry ingredients are added to keep the crumb tender. Using hot coffee instead of water deepens the chocolate flavor without making the cupcakes taste like coffee, and checking for doneness a couple of minutes early prevents dryness. Let the cupcakes cool fully before frosting so the buttercream doesn’t melt, and if the frosting feels too soft, chill it for 10–15 minutes, then re-whip briefly. Store frosted cupcakes in an airtight container at cool room temperature for a day or in the refrigerator for longer, bringing them back to room temperature before serving for the best texture and flavor.