Preheat the oven to 350℉. Line 12 cupcake cavities with liner, and set aside.
Sift all dry ingredients, including the Cocoa Powder, which tends to clump up.
1½ cups All-purpose flour, ¼ cup Cocoa powder, ½ teaspoon Baking powder, 1 teaspoon Baking soda, ¼ teaspoon Salt
Melt the Butter and beat it with sugar.
1 tablespoon Butter, 1 cup Sugar
Add the Oil and White Vinegar andkeep mixing until the mixture is smooth.
1 tablespoon White vinegar, ½ cup Oil
Add in the Egg, and vanilla extract, At this point, we need to beat the mixture for a good 2-3 minutes. The mixture will turn into a smooth, creamy mixture!
1 Egg, 2 teaspoon Vanilla extract
Start adding the dry ingredients, alternating with the brewed coffee. Do this in three passes. Start and finish with dry ingredients. Do not overmix.
1 cup Coffee
Fill the lined cupcake cavities to ⅔ of their capacity. Bake them for 15-18 minutes or until an insert comes out clean. Let them cool down before frosting.
How To Make The Frosting
Using the paddle attachment, beat the butter until it is creamy, pale, and fluffy.
1 cup Butter
Sift the powdered sugar and mix ½ teaspoon of Meringue Powder into it. Lower the speed of your mixer and start adding the sugar to the butter ¼ cup at a time, and beat well after each addition.
3 cups Powdered sugar, ½ teaspoon Meringue powder
After adding all the powdered sugar, add the cocoa powder and vanilla extract and mix well. Beat the mixture until it is creamy and smooth.
½ cup Cocoa powder, 1 tablespoon Vanilla extract
On medium speed, start adding the cream cheese one tablespoon at a time until all the cream cheese is incorporated.
4 ounce Cream cheese
Bring the speed down and let the mixture run for a few minutes. This will remove any air pockets in the mixture!
If you find the mixture is not smooth and spreadable enough, add one or two tablespoons of heavy cream. Use your desired piping tip to frost the cupcakes.
2-3 tablespoon Heavy cream
How To Make The Chocolate Skulls
Melt about 350 grams of dark or semi-sweet chocolate in a double boiler. Stir constantly to avoid seizing the chocolate. Fill up the Skull Molds with melted chocolate. Gently tap the mold on the counter to release the air bubbles. Let them firm up at room temperature, and place one on top of the frosting.