Ingredients:

  • 1 box (15.25 oz / 432g) spice cake mix
  • 2 large eggs
  • 1/2 cup (115g) unsalted butter, melted and cooled
  • 1/2 cup (120g) sour cream
  • 2 cups (280g) zucchini, grated and lightly squeezed
  • 1 tsp (2g) ground cinnamon
  • 1/2 tsp (1g) salt
  • 1/2 cup (60g) chopped walnuts

Instructions:

  1. Preheat oven to 350°F (175°C). Grease a 9x5 inch loaf pan with butter or spray and line the bottom with a strip of parchment paper.
  2. In a large bowl, whisk together the melted butter, eggs, and sour cream until smooth.
  3. Stir in the spice cake mix, cinnamon, and salt until flour streaks disappear.
  4. Gently fold in the grated zucchini and chopped walnuts using a spatula until just distributed.
  5. Pour batter into the prepared pan and smooth the top.
  6. Bake for 50–60 minutes, or until a toothpick inserted into the center comes out clean.
  7. Cool in the pan for 10 minutes, then transfer to a wire rack to cool completely for 2 hours before slicing.