Pour the wet ingredients into the dry ingredients. Fold until the batter is well combined. Some lumps are ok.
Pour half of the hot coffee into the batter and fold until combined. Then mix in the remaining half. The batter will be thin and smooth.
150 grams brewed coffee
Fill each cupcake liner ½ full. Bake for 18-20 minutes or until a toothpick inserted in the center comes out clean.
Let the cupcakes cool in the tin for 10 minutes, then transfer to a wire rack and cool completely.
Chocolate Frosting
Add softened unsalted butter to the bowl of a stand mixer or hand mixer. Beat on medium high speed for 2-3 minutes until creamy. Scrape down the sides of the bowl.
226 grams unsalted butter
Mix in the cocoa powders and salt on low. Once incorporated, increase the speed to medium until creamy.
30 grams Dutch-processed cocoa powder, 30 grams black cocoa powder, ½ teaspoon salt
With the mixer on low, gradually mix in the powdered sugar. Once it's all added, increase the speed to medium. It will look crumbly.
440 grams powdered sugar
With the mixer running, slowly stream in the heavy cream until the desired consistency is reached.
160 grams heavy cream
Fill a piping bag fitted with a piping tip with frosting. Pipe a swirl on top of each cupcake, add chocolate shavings, and enjoy.
Notes
Only fill the cupcake liners half full or they will overflow in the oven.Storage: Store unfrosted cupcakes in an airtight container at room temperature for up to 4 days. Store frosted cupcakes in a sealed container the refrigerator for up to 5 days, then warm on the counter for 30 minutes before serving.Freezing: Freeze on a baking tray for 1-2 hours until frozen solid, then transfer to a freezer-safe sealed container and freeze for up to 3 months.Let thaw in the refrigerator overnight and then on the counter for an hour before frosting.