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+ servings
a piece of vegan sheet cake with wacky cake frosting

Chocolate Snack Cake

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This super moist chocolate snack cake is so easy – its made in the same pan you bake it in! It’s topped with a smooth fudgy buttercream for extra chocolatey-ness.
Course Dessert
Cuisine American
Diet Low Lactose, Vegan, Vegetarian
Prep Time 15 minutes
Bake Time 25 minutes
Total Time 40 minutes
Servings 9 slices
Calories 489

Ingredients

Wacky Chocolate Cake

  • 1⅓ cup +1 tbsp all-purpose flour
  • ¾ cup granulated sugar
  • ¼ cup cocoa powder
  • ¾ tsp salt
  • 1 tsp baking soda
  • 1 tsp baking powder
  • 1 tbsp white vinegar
  • cup canola oil (or other neutral oil)
  • 1 cup hot water

Wacky Cake Frosting (Fudgy Buttercream)

  • ¾ cup butter (vegan or regular)
  • ½ cup cocoa powder
  • cup powdered sugar
  • ½ tsp vanilla extract
  • 1-1½ tbsp milk of choice (if needed) (vegan or regular)

Instructions

Chocolate Snack Cake

  • Preheat oven to 350°F. Lightly spray an 8x8 square baking pan with cooking spray.
  • Add the flour, sugar, cocoa powder, salt, baking soda, and baking powder and mix with a fork until any clumps are gone.
  • With a fork or spoon, make 3 wells in the dry mixture and evenly distribute the oil and vinegar between the them. 
  • Pour the water over the entire mixture and mix with a fork until fully combined, making sure to scoop the corners to get any remaining dry ingredients.
  • Bake for 22-26 minutes or until a toothpick inserted in the middle of the cake comes out clean. Do not over-bake! After 22 minutes, check the cake every 1 minute. If you over-bake, the cake will be dry!
  • Allow the cake to cool completely before frosting.

Wacky Cake Chocolate Frosting

  • Add butter to a bowl and slowly add in the powdered sugar, followed by cocoa powder, mixing until combined.
  • Add in the vanilla, followed by the milk. If the buttercream appears too thick, mix milk in a 1/2 tbsp at a time until it reaches the desired consistency. If it’s still too thick, add another 1/2 tbsp of milk.
  • Once the cake has cooled completely, spread the icing on the cake using a spatula. Slice and serve!

Notes

DOUBLING INSTRUCTIONS: You can easily double this recipe and make it in a 9x13 inch pan. Simply double all ingredient amounts and bake for around 25-35 minutes, or until a toothpick inserted in the middle comes out clean. You can also double the recipe using two 9 inch round cake pans.
STORAGE INSTRUCTIONS: Store the cake in an airtight container or tightly covered at room temperature for up to 4 days. Leftover buttercream can be frozen for up to 2 months in a sealed container.

Nutrition

Calories: 489kcal | Carbohydrates: 72g | Protein: 5g | Fat: 22g | Saturated Fat: 4g | Polyunsaturated Fat: 6g | Monounsaturated Fat: 11g | Trans Fat: 0.1g | Sodium: 488mg | Potassium: 155mg | Fiber: 4g | Sugar: 40g | Vitamin A: 719IU | Calcium: 42mg | Iron: 3mg