Chocolate Coconut Sheet Cake

This Chocolate Coconut Sheet Cake is rich, fluffy, and made for sharing. Cocoa and rum give it a deep chocolate flavor, shredded coconut adds texture, and chocolate drops melt into little pockets throughout. It’s a simple mix-and-bake tray cake for a 30×20cm pan — perfect for parties, coffee breaks, or when you want a reliable chocolate fix.

Total Time
45 min
Difficulty
Servings
12 servings
Allergens: Gluten Soy

Batter Instructions

  1. Preheat the oven to 180°C.
  2. Line a 30 × 20cm baking dish with parchment paper (or grease with vegan butter and dust with flour).
  3. In a mixing bowl, whisk together the flour, cocoa powder, baking powder, baking soda, and salt.
  4. Add the soy milk, rum, sugar, vanilla sugar, and sunflower oil. Whisk until smooth.
  5. Add the apple cider vinegar and whisk again briefly (it helps the cake bake up tender).
  6. Fold in the shredded coconut and chocolate chips.
  7. Pour the batter into the prepared pan and smooth the top.
  8. Bake for 28–35 minutes, until a toothpick comes out mostly clean (a few melted chocolate bits are fine).
  9. Cool in the pan for 10–15 minutes, then transfer to a wire rack to cool completely before slicing.

Notes

  • Don’t overbake — sheet cakes dry out quickly. Start checking at ~28 minutes.
  • A few chocolate smears on the toothpick are normal because of the chocolate chips.
  • Rum adds depth but won’t taste boozy after baking; you can replace it with soy milk if needed.
  • This cake is even nicer the next day once the coconut and chocolate settle into the crumb.
  • Store in an airtight container at room temperature for 3–4 days, or in the fridge for up to a week.

Equipment Needed

  • Oven
  • Baking Dish
  • Parchment Paper
  • Mixing Bowl
  • Whisk
  • Rubber Spatula
  • Kitchen Scale
  • Measuring Cups
  • Tooth Picks
  • Wire Rack
  • Knife