Name: Texas Sheet Cake
Prep time: 30 min
Cook time: 16 min
Yield: 15 slices
Ingredients: 1 cup unsalted butter (cut into pieces); 1 cup water; 1/3 cup cocoa powder; 2 cups flour; 1 1/2 cups sugar; 1/2 cup brown sugar; 1 teaspoon baking soda; 3/4 teaspoon salt; 1/2 teaspoon instant coffee (optional); 1/2 cup sour cream; 2 large eggs (room temperature); 1 teaspoon vanilla extract; 6 Tablespoons milk; 1/2 cup butter (cut into pieces); 6 Tablespoons cocoa powder; 4 cups powdered sugar (sifting is recommended (after measurinto avoid any lumps)); 3/4 teaspoon vanilla extract