Ingredients
Scale
- 3 cups all-purpose flour
- 2 teaspoons baking powder
- ½ teaspoon baking soda
- ½ cup (1 stick) salted butter, softened to room temperature
- ½ cup vegetable oil
- 1 ¾ cups granulated sugar
- 3 large eggs, room temperature
- 2 large egg yolks, room temperature
- 1 ½ teaspoons vanilla extract
- 1 ¼ cups buttermilk, room temperature
- 1 cup (2 sticks) salted butter, softened to room temperature
- ½ cup unsweetened cocoa powder
- 4 cups powdered sugar
- 1 teaspoon vanilla extract
- 4–5 tablespoons heavy whipping cream
- sprinkles for garnish, optional
Instructions
- Preheat the oven to 350°F and prepare a 9x13x3-inch baking dish with baking spray.
- In a bowl, mix together the flour, baking powder, and baking soda.
- In a stand mixer, cream the softened butter, vegetable oil, and granulated sugar for 3 minutes until fluffy.
- Add eggs one at a time, mix in egg yolks and vanilla extract.
- Gradually add half of the dry ingredients and stir to combine, then add half of the buttermilk. Repeat with the remaining ingredients, scraping down the sides as needed.
- Pour the batter into the prepared baking dish and smooth the top.
- Bake for 35-40 minutes, checking for doneness with a toothpick. Cover with foil if browning too much.
- Allow the cake to cool completely.
Last Step:
Please leave a rating and comment letting us know how you liked this recipe! This helps our business to thrive and continue providing free, high-quality recipes for you.Notes
For unsalted butter, add one teaspoon of salt to the dry ingredients.
Baking times may vary, check for doneness rather than just following the time.
Optional: add sprinkles for a fun garnish.
- Prep Time: 30 minutes
- Cook Time: 70 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 300
- Sugar: 22g
- Sodium: 150mg
- Fat: 15g
- Saturated Fat: 8g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 40g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 50mg