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This Chocolate Turtle Cake Recipe is the BEST! So decadent and delicious!
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4.78 from 27 votes

Chocolate Turtle Cake Recipe

This decadent Chocolate Turtle Cake with chocolate cake layers, ganache, caramel sauce, toasted pecans, and chocolate buttercream is sure to please a crowd!
Course: Dessert
Cuisine: American

Ingredients

For the Chocolate Cake Layers

  • 2 cups granulated sugar (400g)
  • 2 ¾ cups All Purpose Flour (322g)
  • 1 cup unsweetened cocoa (82g)
  • 2 teaspoons Baking Soda (10g)
  • ½ teaspoon Baking Powder (2g)
  • ½ teaspoon Salt (2g)
  • 1 stick + 5 Tablespoons Unsalted Butter (185g) You should be able to make a fingerprint when you press the butter. If it becomes too soft, just refrigerate for a few minutes.
  • 1 cup Sour Cream (242g)
  • 1 cup Milk (220g)
  • 4 eggs room temperature (If in a hurry, place eggs in a bowl of warm water for 5 minutes.)
  • 1 teaspoon vanilla extract (4g)
  • 1 cup Hot Coffee (220g)

For the Caramel Sauce

  • ½ stick unsalted butter (57g) (if using salted butter, do not add additional salt)
  • 1 cup light brown sugar (packed into measuring cup) (217g
  • ½ cup heavy cream (126g)
  • ½ teaspoon salt (2g)
  • 1 teaspoon vanilla extract (4g)
  • 1 Tablespoon light corn syrup (18g)

For the Chocolate Ganache

  • 3 oz Chocolate Semi-sweet or Dark We used Ghirardelli Dark Chocolate
  • 3 oz Heavy Cream

For the Dark Chocolate Buttercream

  • 3 sticks unsalted butter, softened (339g)(do not soften butter in the microwave)
  • 8 cups powdered sugar (920g)
  • 1 cup Hershey's Special Dark Cocoa 82 grams (measure then sift)-- You can substitute with 1 ½ cups (124g) unsweetened cocoa if you don't have Special Dark Cocoa on hand. (It won't be quite as dark but still delicious).
  • 1 teaspoon salt 6g to cut the sweetness (preferably fine grain or popcorn salt). Adjust to taste.
  • ½ cup milk 121 grams more if needed to reach the spreading consistency you like
  • 2 teaspoons vanilla 12 grams

Pecans for in between layers and decoration

  • 1 cup pecans (adjust amount to your liking). (106g) (We chopped the pecans and baked on a parchment lined cookie sheet at 350 degrees for 4-5 minutes. Do not let them get too dark. Baking is optional but makes the pecans more flavorful.)

Instructions

For the Chocolate Cake Layers

  • Preheat oven to 325 degrees. Grease and flour three 9 inch pans. This recipe uses the Reverse Creaming Method of Mixing.
  • Add dry ingredients to the bowl of your mixer and mix for one minute to blend (sugar, flour, cocoa, baking soda, baking powder, and salt)
  • Add butter a few slices at a time and mix until it reaches a crumbly, sandy texture. Be careful not to over-mix beyond "sandy" consistency.
  • In another bowl, combine sour cream, eggs, milk, and vanilla. Using a fork, mix together. This is all of your wet ingredients except for the coffee, it will be added to the batter later.
  • Set a timer for 1 ½ minutes and SLOWLY add half of your egg mixture to your butter/flour mixture while mixing. Start mixer on low speed then increase to medium for the remainder of the 1 ½ minutes. Do Not Mix Above Medium Speed.
  • Stop mixer, scrape the sides and bottom of bowl, and add half of the remaining egg mixture. Mix on medium speed for 20 seconds.
  • Stop mixer, scrape down the sides if necessary, and add the last of the egg mixture. Mix for 20 more seconds on medium speed.
  • Slowly add HOT coffee and mixing for 30 seconds to blend. Batter will be runny but that is okay!
  • This recipe makes about 9 ½ cups of batter. Pour into 3 prepared 9" pans and bake at 325 degrees for 25 to 30 minutes or until the center of the cake springs back to the touch and a toothpick comes out clean.

For the Caramel Sauce

  • Using a medium size sauce pan (deep enough to prevent boil over)  melt the butter over medium heat.  
  • Add the brown sugar and the remaining ingredients.
  • Stir to  blend, try to keep mixture off the sides of the pan. Once the mixture begins to boil, reduce the heat to low.
  • Cover the pot and simmer for 5 to 6 minutes, check the pot making sure it will not boil over.
  • Keep in mind that the caramel thickens as it cools.
  • Makes 1 cup caramel.  It can be kept in the refrigerator in an airtight container up to 2 weeks.

For the Chocolate Ganache

  • Place your chocolate into a microwave safe bowl.
  • Pour heavy cream over the chocolate and place in the microwave for 30 seconds. (Times may vary, see our note below).
  • Remove and stir. Microwave for 15 seconds more. Repeat in short 15 second increments as needed. When the chocolate has melted almost completely, allow it to sit for 1 minute more before stirring. Stir until you've reached a silky smooth consistency.
  • *Microwave times may vary. If you are making a smaller amount of ganache, you will reduce the microwave time. If your chocolate hasn't melted after the 1 ½ minutes recommended in the instructions, simply microwave in small 10-15 second increments until it has nearly completely melted. Let sit one minute, then stir until smooth.
  • Allow finished ganache to cool until it is a good consistency for dripping. (You can test this on the inside of your bowl. If it moves too quickly down, let it thicken a little more.

For the Dark Chocolate Buttercream

  • Add butter to a mixing bowl and beat for approximately 1 min. on medium speed. Add vanilla and blend into the butter. Add powdered sugar, salt, and cocoa powder.
  • Add most of the milk. Begin beating at low speed so you won't have a cloud of powdered sugar in your kitchen. Beat at medium speed 1 minute. Reduce speed to low and beat an additional two to three minutes, adding remaining milk as needed.
  • This is my favorite chocolate frosting! Recipe can easily be doubled or halved.
  • This recipe makes approximately 6 cups of frosting.

Assembly of the Chocolate Turtle Cake


  • After placing the first chocolate cake layer on the cake base or pedestal, spread with a layer of chocolate buttercream.
  • Spread/drizzle with caramel, ganache, and sprinkle with toasted chopped pecans. Top with the next cake layer and repeat. Top with the final cake layer and frost the cake with Chocolate Buttercream.
  • Drizzle with caramel, ganache, and sprinkle with toasted pecans. Decorate as desired. I piped french tip stars around the top using a Wilton 6B tip and topped those with additional pecans. I also finished with a shell border at the base of the cake.