Ingredients
Method
Preparation
- Preheat your oven to 350 degrees F (175 degrees C) for glass or ceramic dishes. For metal pans, adjust to 325 degrees F (163 degrees C).
- Line an 8x8 inch baking dish with parchment paper and lightly grease the sides and bottom.
- In a large mixing bowl, whisk together flour, sugar, cocoa powder, baking powder, baking soda, and salt until combined.
- Add in the egg, milk, vegetable oil, and vanilla extract. Mix on low speed until combined, then increase to medium speed and beat for about 2 minutes.
- Pour in the warm water or brewed coffee and stir until fully combined. The batter will be thin.
- Carefully pour the batter into the prepared dish and bake for 35-40 minutes. A toothpick inserted in the center should come out with a few crumbs.
- Let the cake cool in the pan for 10 minutes before transferring it to a wire rack to cool completely.
Frosting
- In a microwave-safe bowl, heat the chocolate chips on 50 percent power in 30-second intervals, stirring until melted and glossy.
- Add the sour cream and vanilla extract to the melted chocolate and stir until smooth and fluffy.
- Spread the frosting evenly over the cooled cake.
Notes
For a fun twist, try adding a pinch of sea salt on top of the frosting or swirl in some peanut butter for chocolate-peanut butter goodness. Store leftover cake in an airtight container for up to 3 days.