Fudgy Texas Brownies Recipe: Classic Pan Brownies

This decadent, moist chocolate Texas sheet cake—also called “Texas brownies”—is ideal for potlucks, picnics, and family gatherings. A smooth, fudgy frosting is poured over the warm cake as soon as it comes out of the oven, creating a quick, crowd-pleasing dessert.

Origins of this Classic Texas Sheet Cake Recipe

Texas sheet cake is a single-layer chocolate cake known for being very moist and tender, with a fudgy topping poured on while the cake is still warm. The name “Texas sheet cake” or “Texas brownies” likely reflects either a regional origin or the cake’s large size—traditionally baked in a jelly roll pan—large enough to feed a crowd.

This dessert is especially popular for gatherings because it travels easily and slices into many portions, making it a perfect make-ahead treat for potlucks, picnics, and family dinners.

Ingredients you’ll need for this chocolate Texas sheet cake

For the sheet cake:

• 2 cups all-purpose flour
• 2 cups granulated sugar
• 1 cup butter
• 1 cup strong brewed coffee or hot water
• 1/4 cup unsweetened cocoa powder
• 1/2 cup buttermilk (If you don’t have buttermilk, add 1/2 tablespoon lemon juice to a measuring cup and fill to 1/2 cup with milk; let sit briefly.)
• 2 large eggs
• 1 teaspoon baking soda
• 1 teaspoon vanilla extract

For the fudgy frosting:

• 1/2 cup butter
• 2 tablespoons unsweetened cocoa powder
• 1/4 cup milk
• 3 1/2 cups powdered (confectioners’) sugar
• 1 teaspoon vanilla extract

Step-by-Step Instructions

1. Preheat and prep: Preheat the oven to 400°F (200°C). Lightly spray a 17 1/2 x 11-inch jelly roll pan (or a similar rimmed baking sheet) with cooking spray.
2. Combine dry ingredients: In a large mixing bowl, whisk together the flour and sugar until evenly mixed.
3. Heat butter, cocoa and liquid: In a small saucepan, melt the 1 cup butter with the 1/4 cup cocoa and the cup of strong coffee (or hot water). Stir and bring just to a boil so the cocoa and butter are fully melted and combined.
4. Create the batter: Pour the hot chocolate mixture over the flour and sugar. Stir to combine, then add the buttermilk, eggs, baking soda, and 1 teaspoon vanilla. Beat well—by hand or with an electric mixer—until the batter is smooth and uniform.
5. Bake: Pour the batter into the prepared pan and spread evenly. Bake at 400°F for about 20 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs. The cake should remain very moist.
6. Prepare the frosting: While the cake bakes, make the frosting. In a saucepan combine 1/2 cup butter, 2 tablespoons cocoa, and 1/4 cup milk. Heat, stirring, until the mixture reaches a boil. Remove from heat and whisk in the powdered sugar and 1 teaspoon vanilla until smooth. For extra smooth frosting, use an electric mixer briefly.
7. Finish while warm: As soon as the cake comes out of the oven, pour the warm frosting over the top and spread quickly and evenly. The frosting sets fast once it cools, so work briskly. Add sprinkles if desired, and let the cake cool on a rack.

Tips, Serving, and Storage

Cut the cooled cake into 32 bars for serving, or into larger pieces for fewer servings. This sheet cake stores well at room temperature for a day or two in an airtight container; refrigerate for longer storage and bring to room temperature before serving. Because the frosting sets quickly, cover loosely with foil to protect the surface if transporting to a potluck.

Recipe Yield, Times, and Notes

• Yield: about 32 bars
• Prep time: 15 minutes
• Cook time: 20 minutes
• Total time: about 35 minutes

Note: If you don’t have buttermilk, add 1/2 tablespoon lemon juice to a measuring cup and fill to 1/2 cup with milk, then use as directed.

Nutrition Snapshot (approximate per serving)

• Calories: 212
• Total Fat: 9 g (Saturated Fat: 6 g)
• Cholesterol: 35 mg
• Sodium: 121 mg
• Carbohydrates: 31 g (Sugar: 25 g)
• Protein: 2 g

More Dessert Ideas for Picnics and Potlucks

• Strawberry pie with gelatin is a refreshing summer favorite.
• Rhubarb crisp topped with oats and brown sugar makes a comforting dessert.
• Peanut butter chocolate chip cookies combine two classic flavors in one bake.
• Banana cream pie layered with homemade pudding is a timeless family treat.