Grandma's Chocolate Texas Sheet Cake Recipe

Preheat the oven to 350 degrees F (175 degrees C). Grease and flour a 10x15-inch cake pan.

Combine butter water and cocoa powder for cake in a saucepan over medium heat. Cook until butter has melted and mixture comes to a boil. Remove from the heat and cool slightly.

Meanwhile mix flour sugar and salt together in a large bowl. Beat buttermilk eggs baking soda and vanilla extract together in a separate bowl.

Add melted butter mixture to the flour mixture then add buttermilk-egg mixture and beat until thoroughly combined. Pour into the prepared cake pan.

Bake in the preheated oven until a toothpick inserted into the center comes out clean about 20 minutes. Remove cake from the oven and cool on a wire rack for 5 minutes.

Meanwhile combine butter milk cocoa powder and vanilla extract for the frosting in a saucepan over medium heat. Stir until butter melts then stir in powdered sugar. Spread frosting over the warm cake.