Prep Time 15 minutes mins
Cook Time 18 minutes mins
Resting Time 30 minutes mins
Total Time 1 hour hr 3 minutes mins
For best results, ensure all refrigerated ingredients are at room temperature so the batter mixes evenly and the cupcakes rise properly; avoid overmixing once the dry ingredients are added to keep the crumb tender, and rotate the pan halfway through baking if your oven has hot spots. Using hot coffee deepens the chocolate flavor without making the cupcakes taste like coffee, but hot water works well if you prefer. Let the cupcakes cool fully before frosting to prevent the icing from melting, and store any leftovers in an airtight container at room temperature for up to two days or refrigerate for slightly longer freshness.