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Moist One-Bowl Zucchini Bread with Brown Butter Streusel

moist one-bowl zucchini bread - featured image

A quick and easy one-bowl zucchini bread recipe featuring browned butter and a crunchy brown butter streusel topping for a moist, flavorful treat perfect for any occasion.

Ingredients

Scale
  • 2 cups (about 300g) grated zucchini (squeeze out excess moisture gently)
  • 1½ cups (190g) all-purpose flour (or whole wheat flour for nuttier note)
  • 1 teaspoon baking soda
  • ½ teaspoon baking powder
  • ½ teaspoon salt
  • 1 teaspoon ground cinnamon
  • ½ teaspoon ground nutmeg (optional)
  • ½ cup (115g) unsalted butter, browned and cooled
  • ¾ cup (150g) granulated sugar
  • ½ cup (100g) packed light brown sugar
  • 2 large eggs, room temperature
  • 1 teaspoon pure vanilla extract
  • For the Brown Butter Streusel Topping:
  • ¼ cup (57g) unsalted butter, browned
  • ½ cup (100g) light brown sugar
  • ½ cup (60g) all-purpose flour
  • ½ teaspoon ground cinnamon
  • ¼ teaspoon salt
  • ½ cup (60g) chopped walnuts or pecans (optional)

Instructions

  1. Prepare the zucchini: Wash and dry about 2 medium zucchinis. Grate them using a box grater or food processor. Gently squeeze out some excess moisture to keep bread moist but not soggy (about 2 cups grated zucchini).
  2. Bake the brown butter: In a small saucepan over medium heat, melt ½ cup unsalted butter. Stir as it foams and browns to a nutty aroma and golden color, about 5-7 minutes. Remove from heat and let cool slightly.
  3. Mix dry ingredients: In a large mixing bowl, whisk together 1½ cups all-purpose flour, 1 teaspoon baking soda, ½ teaspoon baking powder, ½ teaspoon salt, 1 teaspoon cinnamon, and ½ teaspoon nutmeg.
  4. Combine sugars and eggs: In the same bowl, add ¾ cup granulated sugar, ½ cup packed light brown sugar, 2 large eggs, and 1 teaspoon vanilla extract. Stir until combined and slightly fluffy.
  5. Add browned butter to wet mixture: Slowly pour the cooled browned butter into the sugar and egg mixture, stirring gently to combine.
  6. Fold in zucchini and dry ingredients: Add grated zucchini and dry ingredients to the wet mixture. Fold gently with a spatula just until combined; do not overmix.
  7. Prepare the streusel topping: In a small bowl, mix ¼ cup browned butter, ½ cup brown sugar, ½ cup flour, ½ teaspoon cinnamon, ¼ teaspoon salt, and ½ cup chopped nuts (if using). Crumble mixture evenly.
  8. Assemble and bake: Pour batter into a greased or parchment-lined 9×5-inch loaf pan. Sprinkle streusel evenly on top. Bake at 350°F (175°C) for 55-65 minutes. Check doneness with a toothpick; it should come out with a few moist crumbs.
  9. Cool and enjoy: Let bread cool in pan for 15 minutes, then transfer to a wire rack to cool completely before slicing.

Notes

Squeeze out excess moisture from zucchini to avoid soggy bread. Brown butter carefully to avoid burning. Fold batter gently to keep bread tender. Tent with foil if streusel browns too fast. Use room temperature eggs for better mixing.

Nutrition

Keywords: zucchini bread, brown butter, streusel, quick bread, easy recipe, one-bowl, moist bread, summer zucchini, snack, breakfast