Ingredients:

  • 2 cups (250g) all-purpose flour
  • ¾ cup (75g) unsweetened cocoa powder
  • 1 ½ tsp (7g) baking soda
  • ½ tsp (2g) baking powder
  • ½ tsp (3g) salt
  • 1 tsp (2g) ground cinnamon
  • 1 cup (200g) granulated sugar
  • 1 cup (200g) brown sugar, packed
  • ½ cup (120ml) vegetable oil
  • 2 large eggs
  • ½ cup (120g) sour cream
  • 1 tsp (5ml) vanilla extract
  • 3 cups (350g) grated zucchini, lightly squeezed
  • 1 cup (170g) semi-sweet chocolate chips
  • 8 oz (225g) full-fat cream cheese, softened
  • ½ cup (115g) unsalted butter, softened
  • 3 cups (360g) powdered sugar
  • 1 tsp (5ml) vanilla extract
  • 2 tbsp (30ml) heavy cream

Instructions:

  1. Preheat your oven to 350°F (175°C). Grease your baking pan and line the bottom with parchment paper.
  2. Grate the zucchini using the fine side of a box grater. If the zucchini is exceptionally watery, give it a light squeeze.
  3. In a medium bowl, sift together the flour, cocoa powder, baking soda, baking powder, salt, and cinnamon.
  4. In a large bowl, beat the granulated sugar, brown sugar, oil, eggs, sour cream, and vanilla until the mixture is smooth and pale.
  5. Gradually stir the dry ingredients into the wet mixture using a spatula. Mix until just combined.
  6. Gently fold in the grated zucchini and chocolate chips until evenly distributed.
  7. Pour batter into the prepared pan and bake for 35 minutes or until a toothpick comes out clean.
  8. Prepare frosting by beating softened cream cheese and butter until smooth, then mixing in powdered sugar, vanilla, and heavy cream.
  9. Frost the cooled cake evenly and slice into 12 portions.