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Diet Dr Pepper® Texas Sheet Cake

This cake is beyond good and always a crowd-pleaser. Diet Dr Pepper® Texas Sheet Cake is a fudgy, moist, thin chocolate cake made with Dr Pepper soda pop.
Course Dessert
Cuisine American/Southern
Keyword bundt cake, chocolate
Prep Time 20 minutes
Cook Time 18 minutes
Total Time 38 minutes
Servings 15 servings
Calories 398kcal
Author Paula Jones



  • 2 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1/2 teaspoon instant coffee or espresso powder
  • 1/2 teaspoon ground cinnamon
  • 2 cups sugar
  • 3 eggs
  • 1/2 cup buttermilk
  • 1 teaspoon vanilla extract
  • 1 cup salted or unsalted butter melted
  • 1/2 cup cocoa powder
  • 1 cup Dr Pepper® or Diet Dr Pepper®


  • 1/2 cup salted or unsalted butter
  • 1/4 cup cocoa powder
  • 1/3 cup buttermilk
  • 1 teaspoon vanilla extract
  • 3 and 3/4 cups powdered sugar
  • 2/3 cup pecans toasted and chopped. (can also use walnuts, cashews, almonds)



  • Preheat oven to 375 degrees. Grease or line with foil an 18x13 inch sheet pan.
  • In a large bowl, combine flour, baking soda, salt, instant coffee, cinnamon, and sugar.
  • In another bowl, whisk eggs, buttermilk, and vanilla.
  • Melt butter.
  • Combine melted butter, Diet Dr Pepper, and cocoa.
  • Add melted butter mixture to flour mixture and stir until combined.
  • Add egg mixture and stir until completely combined.
  • Pour the batter into the prepared pan. Smooth evenly.
  • Bake 16 to 18 minutes at 375 degrees F.
  • Remove from oven to cool.


  • In a large saucepan, melt butter over low heat.
  • Whisk in cocoa powder until smooth.
  • Whisk in buttermilk, vanilla, and powdered sugar.
  • Whisk until al the ingredients are incorporated and smooth.
  • Pour onto warm cake and smooth evenly with an offset spatula.
  • Immediately sprinkle with nuts.
  • Serve immediately or cool.
  • Store cake in airtight container.


Recipe from Paula @CallMePMc.com All images and content are copyright protected. Please do not use my images without prior permission that includes copying the ingredient list or entire recipe and posting in the comments on Pinterest for Facebook. If you want to share this recipe, please simply link back to this post for the recipe.


Calories: 398kcal | Carbohydrates: 73g | Protein: 5g | Fat: 11g | Saturated Fat: 5g | Cholesterol: 50mg | Sodium: 233mg | Potassium: 132mg | Fiber: 2g | Sugar: 57g | Vitamin A: 259IU | Calcium: 33mg | Iron: 2mg