Introduction

The Denver Chocolate Sheet Cake is a classic American dessert known for its moist texture, rich cocoa flavor, and simple preparation. Baked in a large sheet pan, it’s perfect for gatherings and family celebrations. Topped with a luscious chocolate frosting that slightly soaks into the warm cake, it delivers a melt-in-your-mouth experience.

Ingredients

For the Cake:

• 2 cups all-purpose flour
• 2 cups granulated sugar
• 1 cup unsalted butter (2 sticks)
• 1 cup water
• 1/4 cup unsweetened cocoa powder
• 2 large eggs
• 1/2 cup sour cream or Greek yogurt
• 1 teaspoon baking soda
• 1 teaspoon vanilla extract
• 1/4 teaspoon salt

For the Frosting:

• 1/2 cup unsalted butter (1 stick)
• 1/4 cup unsweetened cocoa powder
• 1/4 cup milk
• 4 cups powdered sugar
• 1 teaspoon vanilla extract
• Optional: 1 cup chopped pecans or walnuts

Instructions

1. Preheat oven to 350°F (175°C). Grease and flour a 10×15-inch baking pan (or line with parchment paper).
2. In a saucepan, melt butter with water and cocoa powder. Bring to a gentle boil, stirring until smooth.
3. In a large bowl, whisk together flour, sugar, baking soda, and salt. Pour in the hot cocoa mixture and stir gently until combined.
4. Add eggs, sour cream, and vanilla. Mix until smooth, but do not overmix.
5. Pour batter into the prepared pan. Bake for 20–25 minutes or until a toothpick inserted in the center comes out clean.
6. For the frosting: In a saucepan, melt butter, cocoa, and milk over medium heat. Bring to a gentle boil, then remove from heat. Stir in powdered sugar and vanilla until smooth.
7. Spread the frosting over the warm cake. Sprinkle nuts on top if desired.
8. Allow cake to cool slightly before slicing and serving.

Description

This Denver Chocolate Sheet Cake is ultra-moist and light, with a rich chocolate flavor. The warm frosting creates a glossy, slightly fudgy topping that clings to every bite. Simple, rustic, and nostalgic, it’s perfect for any occasion.