Description
A rich, ultra-moist chocolate sheet cake topped with a hot, fudgy chocolate icing, creating an ooey-gooey chocolate lover's dream. Easy to make in just 30 minutes.
Ingredients
- 2 cups sugar
- 2 cups all-purpose flour + 1 Tbsp for chocolate chips
- 1 tsp baking powder
- 2 tsp baking soda, divided
- ½ lb unsalted butter
- ¼ cup sweetened cocoa powder
- 1 cup water
- 2 large eggs
- ½ tsp kosher salt
- ½ cup milk
- ½ Tbsp vinegar
- 1 tsp vanilla extract
- 1½ cups semi-sweet chocolate chips
- ¼ cup sweetened cocoa powder (for icing)
- ¼ lb unsalted butter (for icing)
- 6 Tbsp milk (for icing)
- 1 lb powdered sugar (for icing)
- 1 tsp vanilla extract (for icing)
- ¼ tsp salt (for icing)
Instructions
- Preheat oven to 375 °F and butter + flour a 9×13 pan.
- In a small cup, combine milk and vinegar; set aside.
- Whisk together flour, sugar, baking powder, 1 tsp baking soda, and salt.
- In a saucepan, bring butter, cocoa, and water to a boil; pour into dry mixture and beat well.
- Stir baking soda into the milk mixture; set aside.
- Toss chocolate chips with 1 Tbsp flour.
- Beat eggs into the cocoa–flour mixture, then stir in milk mixture and vanilla. Fold in chocolate chips.
- Pour batter into the prepared pan; bake 20 minutes or until a toothpick comes out clean.
- Five minutes before cake finishes, prepare icing: boil cocoa, butter, and milk, remove from heat, then beat in powdered sugar, salt, and vanilla.
- Pour icing over the hot cake, spreading evenly. Serve warm.
Notes
- Swap vinegar + milk for ½ cup buttermilk for tangy richness.
- Use unsweetened cocoa if that's what’s on hand—flavor’s still great.
- Stir in chopped nuts or swirl in peanut butter under the icing.
- Add a shot of espresso or instant coffee to deepen the chocolate flavor.
- Skip the icing and dust with powdered sugar for a lighter touch.
Nutrition
- Serving Size: 1 slice
- Calories: 350
- Sugar: 35g
- Sodium: 150mg
- Fat: 18g
- Saturated Fat: 10g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 45g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 40mg