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Zucchini Bars with Brown Butter Cream Cheese Frosting

Prep Time20 mins
Cook Time30 mins
Total Time50 mins
Servings: 9 x13" pan


For the bars:

  • 1/2 cup unsalted butter at room temperature
  • 1 cup granulated sugar
  • 1 large egg
  • 1 teaspoon pure vanilla extract
  • 2 ripe medium bananas mashed
  • 2 cups unbleached all-purpose flour
  • 1 teaspoon baking powder
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 teaspoon cinnamon
  • 1/2 teaspoon nutmeg
  • 2 cups shredded zucchini

For the brown butter frosting:

  • 1/2 cup unsalted butter
  • 8 ounces cream cheese at room temperature
  • 1 teaspoon pure vanilla extract
  • 1/4 teaspoon salt
  • 4 cups powdered sugar


To make the bars:

  • Preheat oven to 350 degrees F. Spray 9x13" baking pan with cooking spray.
  • In a large bowl with electric mixer, beat together the butter and sugar until well combined about 1 minute.
  • Add the egg and vanilla and beat another minute.
  • Add the banana and beat another minute.
  • Add flour, baking powder, baking soda, salt, cinnamon, and nutmeg and beat until just combined.
  • Fold in zucchini.
  • Pour batter into prepared baking dish.
  • Bake for 28-32 minutes, until middle is set and toothpick comes out clean.
  • Let cool completely
  • Meanwhile, make the brown butter.
  • Add butter to a small pot over medium-low heat.
  • Melt the butter and let it cook until little brown specks form and you smell a nutty aroma. Remove from heat immediately.
  • Let cool for about 20 minutes.
  • In a large bowl with electric mixer, beat together brown butter and cream cheese.
  • Add vanilla, salt, and powdered sugar and beat until well combined.
  • Spread over cooled bars.
  • Cut into slices and enjoy!