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squares of carrot cake sheet cake with cream cheese frosting on a cake platter.

Carrot Cake Sheet Cake with a Buttermilk Twist

Carrot Cake Sheet Cake is a simple spin on a Southern classic. It's rich, packed with warm spices, and slathered in a luscious cream cheese frosting. This version stays true to tradition but keeps things simple and fuss-free by baking it as a sheet cake. Just one perfectly moist, dense cake packed with a full pound of fresh carrots for incredible texture and natural sweetness.
Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Servings 20
Calories 434kcal

Ingredients

  • 2 cups flour
  • 2 teaspoons baking powder
  • 2 teaspoons baking soda
  • 1 teaspoon cinnamon
  • 1 teaspoon salt
  • 1 cup vegetable oil
  • ½ cup buttermilk
  • 1 ½ teaspoons vanilla
  • 4 eggs
  • 2 cups sugar
  • 1 pound carrots peeled and shredded, 3 cups
  • 1 cup pecans toasted

Frosting:

  • 2 8 oz packages cream cheese, room temp
  • 1 cup butter room temp
  • 2 cups powdered sugar
  • 1 tablespoon vanilla
  • teaspoon salt

Instructions

  • Preheat oven to 325º Line a 9 x 13 inch cake pan with parchment paper and lightly butter and flour the bottom and sides.
  • Toast pecans until fragrant, about 6-8 minutes, let cool and chop.
  • Add the flour, baking powder, soda, cinnamon and salt to a medium bowl and whisk together. In a separate bowl, whisk the oil, buttermilk and vanilla together.
  • In the bowl of a stand mixer, add eggs and sugar and beat on high until pale, about 3-5 minutes.
  • Beat in the oil and buttermilk mixture. Add the flour mixture and mix only until incorporated. Fold in the shredded carrots and pecans.
  • Pour into the prepared cake pan and bake for 45-50 minutes until a toothpick comes out clean. Let cool on a wire rack before frosting.

Frosting:

  • In a stand mixer, beat cream cheese and butter on high until light and fluffy, 3-5 minutes. Add Salt and vanilla and beat to combine. Add powdered sugar and beat on low speed until incorporated, then beat on high for 3-5 minutes until flight and fluffy.
  • Spread the frosting on top of the cake and refrigerate for an hour before cutting to allow the frosting to set.

Notes

  • Don't use pre shredded carrots, they will be too thick and dry.
  • You can make this into a 2 layer cake, just adjust the cooking time. 
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