Turtle Texas Sheet Cake

Featured in Sweet Moments of Joy.

This Texas-style sheet cake combines tender chocolate cake with a luscious fudge frosting that melts smoothly over the warm surface. The addition of velvety caramel sauce and crunchy pecans on top adds a delightful contrast of flavors and textures. Crafted with a blend of cocoa, buttermilk, and butter, the batter bakes quickly into a moist, rich cake. After baking, the cake is cooled slightly before layering the frosting, caramel, and nuts, creating a decadent treat perfect for gatherings or satisfying cravings. Simple steps and familiar ingredients make this dessert approachable while impressing with its indulgence.

Barbara Chef
Updated on Thu, 13 Nov 2025 17:19:01 GMT
A chocolate cake with nuts on top. Pin it
A chocolate cake with nuts on top. | gracefulflavors.com

This Turtle Texas Sheet Cake is a celebration of rich chocolate layered with luxurious fudge frosting, a drizzle of caramel, and crunchy pecans on top. It's the kind of dessert that makes any gathering feel special and instantly feels like a cozy treat everyone will ask for seconds of.

Ingredients

  • Two cups of all purpose flour provides the classic tender crumb; choose a fresh bag for best texture
  • Two cups granulated sugar sweetens perfectly; avoiding clumps means better batter mixing
  • One teaspoon baking soda helps the cake rise evenly; check your expiration date for a good lift
  • One teaspoon salt balances the sweetness and enhances flavor depth
  • One cup unsalted butter for the cake adds richness; unsalted lets you control salt precisely
  • One cup water assists in dissolving cocoa and butter, creating a smooth chocolate base
  • Half a cup unsweetened cocoa powder delivers deep chocolate flavor; use Dutch processed if you prefer a mellow taste
  • Half a cup buttermilk tenderizes the crumb and adds subtle tang; if unavailable, mix milk and vinegar as a substitute
  • Two large eggs bring structure and moisture; room temperature eggs blend more evenly
  • One teaspoon vanilla extract rounds out the flavors with warmth and sweetness
  • For the frosting, half a cup unsalted butter gives that melt in your mouth fudge texture
  • A quarter cup unsweetened cocoa powder keeps the frosting rich and vibrant
  • A quarter cup milk thins the frosting to the perfect spreadable consistency
  • Three cups powdered sugar sweeten and thicken frosting; sift if lumpy for smooth results
  • One teaspoon vanilla extract gives the frosting a fragrant note
  • One cup caramel sauce adds gooey richness; homemade or quality store bought both work well
  • One cup chopped pecans provide a nutty crunch; toast lightly for more aroma

Step-by-Step Instructions

Preheat the Oven and Prepare Your Pan:
Set the oven to 350 degrees Fahrenheit or 175 degrees Celsius. Grease your large baking sheet, about 18 by 13 inches, and lightly dust with flour. This helps the cake release easily later.
Mix the Dry Ingredients:
In a big bowl, whisk the flour, granulated sugar, baking soda, and salt together until everything is well combined. This ensures an even rise and sweet balance.
Heat Butter, Water, and Cocoa Powder:
Place unsalted butter, water, and cocoa powder in a saucepan over medium heat. Stir frequently as the butter melts and everything comes to a boil. Once boiling, remove from heat and pour this hot mixture right into your dry ingredients.
Combine the Wet Ingredients:
In another bowl, whisk together the buttermilk, eggs, and vanilla extract. Add this wet mix to the batter and stir gently until the mixture is smooth and uniform.
Bake the Cake:
Spread your batter evenly in the prepared baking sheet. Slide it into the oven and bake for 20 to 25 minutes. Check doneness by inserting a toothpick in the center. If it comes out clean, it’s ready.
Prepare the Fudge Frosting:
While the cake bakes, melt the butter for the frosting over medium heat in a saucepan. Stir in cocoa powder and milk, bringing the mix to a boil before removing from heat. Gradually whisk in powdered sugar and vanilla extract until the frosting is silky smooth.
Frost and Decorate:
Once the cake comes out of the oven, let it cool about 10 minutes. Pour the warm fudge frosting over the cake and spread evenly. Then drizzle caramel sauce generously on top and sprinkle with chopped pecans. Allow the cake to cool fully before slicing to get clean pieces.
A chocolate cake with pecans and caramel drizzle. Pin it
A chocolate cake with pecans and caramel drizzle. | gracefulflavors.com

Storage Tips

Store leftovers in an airtight container at room temperature for up to three days. For longer storage, wrap tightly and freeze. Thaw completely before eating and you can refresh the frosting if needed with a quick stir to maintain creaminess.

Ingredient Substitutions

If you don’t have buttermilk, stir one tablespoon vinegar or lemon juice into a cup of milk and let it sit for five minutes. You can swap pecans for walnuts or almonds too depending on preference or what’s in your pantry.

Serving Suggestions

This cake pairs beautifully with a scoop of vanilla ice cream or a dollop of whipped cream. A cup of strong coffee or black tea cuts through the sweetness wonderfully, making the experience more balanced.

Cultural Context

Texas Sheet Cake is a southern classic known for its simplicity and large size perfect for family style meals. This turtle version adds an indulgent twist with caramel and nuts that reflect the idea of layering flavors and textures central to southern baking traditions.

A slice of chocolate cake with nuts on top. Pin it
A slice of chocolate cake with nuts on top. | gracefulflavors.com

Frequently Asked Questions

→ What gives the cake its moist texture?

The combination of buttermilk, butter, and cocoa powder in the batter helps create a tender, moist crumb in the cake.

→ Can I use salted butter instead of unsalted?

Using salted butter is possible, but reduce or omit added salt in the batter to keep flavor balanced.

→ How can I prevent the cake from drying out?

Be sure to bake until a toothpick comes out clean and allow the cake to cool before frosting to maintain moisture.

→ What’s the best way to spread the fudge frosting evenly?

Pour the warm fudge frosting over the cake and use a spatula to gently spread it before it sets.

→ Can the pecans be substituted or omitted?

Yes, you can substitute with other nuts like walnuts or omit them altogether according to preference.

→ Is it necessary to cool the cake before adding caramel and pecans?

Letting the cake cool slightly helps the frosting set properly and prevents toppings from sliding off.

Turtle Texas Sheet Cake

Moist Texas-style chocolate sheet cake layered with fudge frosting, caramel drizzle, and crunchy pecans.

Prep Time
25 Minutes
Cook Time
25 Minutes
Total Time
50 Minutes
By: Barbara


Difficulty: Easy

Cuisine: American

Yield: 16 Servings (One 18×13 inch sheet cake)

Dietary: Vegetarian

Ingredients

→ Dry Ingredients

01 2 cups all-purpose flour
02 2 cups granulated sugar
03 1 teaspoon baking soda
04 1 teaspoon salt
05 1/2 cup unsweetened cocoa powder

→ Wet Ingredients

06 1 cup unsalted butter
07 1 cup water
08 1/2 cup buttermilk
09 2 large eggs
10 1 teaspoon vanilla extract

→ Frosting

11 1/2 cup unsalted butter
12 1/4 cup unsweetened cocoa powder
13 1/4 cup milk
14 3 cups powdered sugar
15 1 teaspoon vanilla extract

→ Topping

16 1 cup caramel sauce
17 1 cup chopped pecans

Instructions

Step 01

Preheat the oven to 350°F (175°C). Grease and flour an 18×13 inch baking sheet.

Step 02

Whisk together flour, sugar, baking soda, salt, and cocoa powder in a large bowl; set aside.

Step 03

In a saucepan over medium heat, combine 1 cup butter, water, and cocoa powder. Bring to a boil, stirring frequently, then remove from heat and pour into dry ingredients. Stir until combined.

Step 04

In a separate bowl, whisk buttermilk, eggs, and vanilla extract. Add this to the batter and stir until smooth.

Step 05

Pour batter evenly into prepared pan and bake for 20-25 minutes, or until a toothpick inserted in the center comes out clean.

Step 06

While cake bakes, melt 1/2 cup butter in a saucepan over medium heat. Stir in cocoa powder and milk, bring to a boil, then remove from heat. Gradually whisk in powdered sugar and vanilla extract until smooth.

Step 07

Cool cake for 10 minutes after baking. Spread the fudge frosting over the warm cake, drizzle caramel sauce on top, and sprinkle with chopped pecans. Allow to cool completely before slicing.

Notes

  1. Adjust baking time according to your oven. Ensure cake is completely cooled before slicing for best texture.

Tools You'll Need

  • Saucepan
  • 18×13 inch baking sheet
  • Mixing bowls
  • Whisk

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy, eggs, and tree nuts (pecans).
  • Not gluten-free due to all-purpose flour.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 550
  • Total Fat: 25 g
  • Total Carbohydrate: 75 g
  • Protein: 5 g