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Decadent Mint Chocolate Chip Sheet Cake with Cream Cheese Frosting

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A moist and tender chocolate sheet cake studded with melty mint chocolate chips and topped with a luscious cream cheese frosting that balances tangy and sweet flavors.

Ingredients

Scale
  • 2 cups (240g) all-purpose flour
  • 3/4 cup (75g) unsweetened cocoa powder (preferably Dutch-processed)
  • 2 cups (400g) granulated sugar
  • 1 1/2 teaspoons baking powder
  • 1 1/2 teaspoons baking soda
  • 1 teaspoon salt
  • 1 cup (240ml) whole milk (or dairy-free alternative like oat milk)
  • 1/2 cup (120ml) vegetable oil (neutral-flavored, like canola or sunflower)
  • 2 large eggs, room temperature
  • 2 teaspoons pure vanilla extract
  • 1 cup (240ml) boiling water
  • 1 cup (175g) mint chocolate chips
  • 8 oz (225g) cream cheese, softened
  • 1/2 cup (115g) unsalted butter, softened
  • 3–4 cups (360-480g) powdered sugar, sifted
  • 1 teaspoon pure vanilla extract
  • 1/2 teaspoon peppermint extract (optional)

Instructions

  1. Preheat your oven to 350°F (175°C). Grease and line a 9×13 inch pan with parchment paper, leaving some overhang for easy lifting.
  2. In a large bowl, whisk together flour, cocoa powder, sugar, baking powder, baking soda, and salt until well combined.
  3. In a separate bowl, whisk milk, vegetable oil, eggs, and vanilla extract until smooth.
  4. Gradually add the wet ingredients to the dry ingredients, mixing gently until just combined. Do not overmix.
  5. Carefully stir in boiling water; the batter will be thin.
  6. Gently fold in mint chocolate chips with a rubber spatula.
  7. Pour batter into the prepared pan and bake for 30-35 minutes, or until a toothpick inserted in the center comes out mostly clean.
  8. Let the cake cool in the pan for about 15 minutes, then transfer to a wire rack to cool completely before frosting.
  9. To make the frosting, beat cream cheese and butter together until creamy and smooth (2-3 minutes). Add vanilla and peppermint extract, then gradually beat in powdered sugar until fluffy and spreadable.
  10. Once the cake is completely cooled, spread the frosting evenly over the cake. Optionally, sprinkle extra mint chips or shaved chocolate on top.
  11. Slice into generous squares and serve.

Notes

Do not skip the boiling water step as it enhances the chocolate flavor and keeps the cake moist. Use room temperature eggs and dairy for better texture. Fold in mint chips gently to avoid melting. Cool cake completely before frosting to prevent melting. Peppermint extract in frosting is optional but recommended for extra mint flavor. Use Dutch-processed cocoa for richer chocolate taste.

Nutrition

Keywords: mint chocolate chip cake, sheet cake, cream cheese frosting, chocolate cake, easy dessert, mint dessert

Find it online: https://breezybake.com/decadent-mint-chocolate-chip-sheet-cake-recipe-with-cream-cheese-frosting-easy-and-best-step-by-step-guide/