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Moist Vegan Graduation Sheet Cake with Creamy Buttercream Frosting

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A moist and fluffy vegan sheet cake perfect for graduations and parties, topped with a luscious creamy vegan buttercream frosting. Easy to make with simple pantry staples and a special aquafaba technique for fluffiness.

Ingredients

Scale
  • 2 ½ cups (315g) all-purpose flour, sifted
  • 2 cups (400g) granulated sugar, organic preferred
  • ¾ cup (75g) unsweetened cocoa powder, Dutch-processed preferred
  • 1 ½ teaspoons baking soda
  • 1 teaspoon baking powder
  • ½ teaspoon salt
  • ¾ cup (180ml) aquafaba (liquid from canned chickpeas), whipped slightly
  • 1 cup (240ml) unsweetened almond milk or any plant-based milk
  • 1 tablespoon apple cider vinegar
  • ¾ cup (180ml) vegetable oil or melted coconut oil
  • 2 teaspoons pure vanilla extract
  • For the Frosting:
  • 1 cup (225g) vegan butter, softened
  • 3 to 4 cups (360-480g) powdered sugar, sifted
  • 2 to 4 tablespoons (30-60ml) unsweetened almond milk
  • 1 teaspoon pure vanilla extract
  • Pinch of salt

Instructions

  1. Preheat oven to 350°F (175°C). Grease a 9×13-inch sheet pan with vegan butter or line with parchment paper.
  2. In a large bowl, sift together flour, sugar, cocoa powder, baking soda, baking powder, and salt.
  3. In a medium bowl, whisk aquafaba lightly until frothy but not stiff.
  4. Add almond milk, apple cider vinegar, vegetable oil, and vanilla extract to the aquafaba and stir gently to combine.
  5. Pour wet ingredients into dry ingredients and fold gently with a rubber spatula until just combined; avoid overmixing.
  6. Pour batter into prepared pan and spread evenly. Bake for 35-40 minutes or until a toothpick inserted in the center comes out clean or with a few moist crumbs.
  7. Cool cake in pan for 15 minutes, then transfer to a cooling rack to cool completely.
  8. For frosting, beat softened vegan butter until creamy (about 2 minutes). Gradually add powdered sugar alternating with almond milk, beating until light and fluffy. Stir in vanilla extract and salt.
  9. Once cake is completely cool, spread frosting evenly over the top with an offset spatula or butter knife.
  10. Chill frosted cake for 30 minutes if possible to set the buttercream for cleaner slicing.

Notes

If aquafaba is unavailable, unsweetened applesauce can be used as a substitute but will yield a denser crumb. For gluten-free, substitute all-purpose flour with a 1:1 gluten-free blend. Chill the cake before slicing to prevent crumbly edges. Adjust almond milk in frosting for desired consistency. Avoid overmixing batter to keep cake tender.

Nutrition

Keywords: vegan cake, sheet cake, graduation cake, dairy-free dessert, egg-free cake, chocolate cake, vegan frosting, aquafaba, plant-based dessert

Find it online: https://islatable.com/moist-vegan-graduation-sheet-cake-recipe-easy-3-step-frosting-tutorial/