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Ultimate Moist and Easy One-Bowl Chocolate Cake

A close-up of a rich, dark slice of moist chocolate cake recipe on a white plate.

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This recipe delivers a rich, fudgy chocolate cake that stays incredibly moist. It uses a simple one-bowl method, making cleanup easy. This is your go-to homemade chocolate cake for birthdays or everyday treats.

Ingredients

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  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • 3/4 cup unsweetened cocoa powder
  • 2 teaspoons baking soda
  • 1 teaspoon baking powder
  • 1 teaspoon salt
  • 1 cup buttermilk
  • 1/2 cup vegetable oil
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1 cup hot brewed coffee (or hot water)
  • 1 cup semi-sweet chocolate chips (optional, for extra richness)

Instructions

  1. Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans or one 9×13 inch pan.
  2. In a very large bowl, whisk together the flour, sugar, cocoa powder, baking soda, baking powder, and salt until well combined.
  3. Add the buttermilk, oil, eggs, and vanilla extract to the dry ingredients. Beat with an electric mixer on medium speed for two minutes, scraping down the sides of the bowl as needed. The batter will be thin.
  4. Carefully pour the hot coffee (or hot water) into the batter and mix on low speed until just combined. If using, stir in the chocolate chips by hand.
  5. Pour the batter evenly into the prepared cake pans.
  6. Bake for 30 to 35 minutes for round layers, or 35 to 40 minutes for a sheet cake, or until a wooden pick inserted into the center comes out clean.
  7. Let the cakes cool in the pans for 10 minutes before inverting them onto a wire rack to cool completely before frosting.

Notes

  • Using hot coffee deepens the chocolate flavor without making the cake taste like coffee.
  • For a richer, fudgier result, use room temperature buttermilk and eggs.
  • This cake pairs well with a simple chocolate buttercream or a rich chocolate ganache frosting.

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