Ingredients
Method
- Preheat oven to 350°F (175°C). Grease a 9x5-inch loaf pan or line with parchment paper.
- In a large bowl, cream butter and sugar until light and fluffy. Beat in eggs one at a time. Stir in zucchini, water, and vanilla extract until combined.
- In another bowl, whisk flour, baking soda, baking powder, pumpkin pie spice, and salt. Gradually fold into the wet ingredients. Stir in walnuts if using.
- Divide batter into two bowls. Add cocoa powder and chocolate chips to one bowl and mix well.
- Pour plain batter into loaf pan. Spoon chocolate batter down the center. Swirl gently with a knife to create a marbled effect.
- Bake for 60 minutes or until a toothpick comes out clean. Cool in pan for 10 minutes, then transfer to a wire rack to cool completely.
Notes
Drain zucchini if it seems watery. Try adding a pinch of cayenne to the chocolate for a spicy twist. For dairy-free, use coconut oil and dairy-free chips. You can make muffins—just reduce bake time to 18–22 minutes.