These easy chocolate cupcakes are rich, moist, and made in one bowl with simple pantry ingredients. Perfect for birthdays, parties, or everyday dessert cravings.
Cupcakes:
1 cup all-purpose flour
½ cup unsweetened cocoa powder
1 tsp baking soda
½ tsp salt
¾ cup granulated sugar
1 large egg
⅓ cup vegetable oil
½ cup buttermilk
1 tsp vanilla extract
½ cup hot water or coffee
Frosting (optional):
½ cup butter, softened
1¾ cups powdered sugar
¼ cup cocoa powder
2 tbsp milk or cream
½ tsp vanilla extract
Pinch of salt
Preheat oven to 350°F and line a 12-cup muffin tin.
Whisk dry ingredients in a large bowl.
Add egg, oil, buttermilk, and vanilla. Mix until mostly smooth.
Stir in hot water or coffee. Batter will be thin.
Divide evenly in liners. Bake 18–22 minutes.
Cool completely. Frost as desired.
Use coffee for deeper chocolate flavor.
Swap buttermilk with milk + vinegar if needed.
Store at room temp for 3 days or freeze unfrosted.