Texas Turtle Sheet Cake Recipe

A decadent and easy sheet cake that combines the classic flavors of Texas Turtle candy: chocolate cake, gooey caramel, and crunchy pecans. Perfect for potlucks, parties, or any occasion!

Ingredients:

  • For the Cake:
    • 1 box (15.25 oz) chocolate cake mix (plus ingredients called for on the box: eggs, oil, water)
    • 1/2 cup sour cream
    • 1/2 cup strong brewed coffee (or hot water)
  • For the Caramel Pecan Topping:
    • 1 cup (2 sticks) unsalted butter
    • 1 1/2 cups packed light brown sugar
    • 1/2 cup heavy cream
    • 1/4 teaspoon salt
    • 1 teaspoon vanilla extract
    • 1 1/2 cups chopped pecans
  • For the Chocolate Ganache (optional, but recommended):
    • 1 cup semi-sweet chocolate chips
    • 1/2 cup heavy cream

Instructions:

  1. Prepare the Cake:
    • Preheat oven to 350°F (175°C). Grease and flour a 9×13 inch baking pan.
    • In a large bowl, combine the chocolate cake mix, sour cream, and the ingredients called for on the cake box (eggs, oil, water).
    • Instead of the amount of water called for on the box, use 1/2 cup of hot coffee or hot water. This will intensify the chocolate flavor.
    • Beat according to package directions.
    • Pour the batter into the prepared pan and bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
    • Let the cake cool completely.  
  2. Prepare the Caramel Pecan Topping:
    • In a medium saucepan over medium heat, melt the butter.
    • Stir in the brown sugar, heavy cream, and salt.
    • Bring to a boil, stirring constantly.
    • Reduce heat and simmer for 5-7 minutes, stirring occasionally, until the mixture thickens slightly.
    • Remove from heat and stir in the vanilla extract and chopped pecans.
    • Immediately pour the caramel pecan topping evenly over the cooled cake.
  3. Prepare the Chocolate Ganache (optional):
    • Place the chocolate chips in a heat-proof bowl.
    • Heat the heavy cream in a small saucepan over medium heat until it just begins to simmer.
    • Pour the hot cream over the chocolate chips and let it sit for 1 minute.
    • Gently stir until the chocolate is completely melted and smooth.
    • Drizzle the chocolate ganache over the caramel pecan topping.
  4. Cool and Serve:
    • Let the cake cool completely to allow the caramel to set.
    • Cut into squares and serve.

Tips and Variations:

  • For a richer chocolate flavor, use devil’s food cake mix.
  • Toast the pecans before adding them to the caramel for a deeper nutty flavor.
  • For an extra caramel kick, drizzle store purchased caramel sauce over the ganache.
  • For a different nut, walnuts can be substituted for the pecans.
  • If you don’t want to make a ganache, you can sprinkle chocolate chips over the hot caramel topping, and allow them to melt, then spread them evenly.
  • Refrigeration will help the caramel set faster, and create cleaner cuts, but it is not required.

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