Zucchini Bars with Brown Butter Frosting

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These Zucchini Bars with Brown Butter Frosting are soft, moist, and packed with warm cinnamon flavor. Fresh zucchini keeps the bars tender, while crunchy pecans and rich brown butter frosting create the perfect sweet finish. They’re an excellent way to use up summer zucchini for a delicious dessert everyone will love.

Ingredients

For the Zucchini Bars

  • 1½ cups granulated sugar
  • 1 cup vegetable oil
  • 3 large eggs
  • 2 cups all-purpose flour
  • 1 teaspoon baking powder
  • ½ teaspoon salt
  • 1½ teaspoons ground cinnamon
  • 2 cups shredded zucchini (about 3 medium zucchini)
  • 1½ cups chopped pecans

For the Brown Butter Frosting

  • 6 tablespoons butter
  • 6 cups powdered sugar
  • 1 teaspoon vanilla extract
  • 8–10 tablespoons milk

Instructions

  • Preheat the oven to 350°F (175°C) and grease a 15×10×1-inch baking pan.
  • In a medium bowl, whisk together the flour, baking powder, salt, and cinnamon.
  • In a large mixing bowl, beat together the sugar, vegetable oil, and eggs until smooth.
  • Gradually add the dry ingredients to the wet ingredients and mix until just combined.
  • Fold in the shredded zucchini and chopped pecans.
  • Spread the batter evenly into the prepared baking pan.
  • Bake for 30–40 minutes or until a toothpick inserted into the center comes out clean.
  • Let the bars cool completely before frosting.
  • For the frosting, melt the butter in a saucepan over medium heat until it turns golden brown and has a nutty aroma.
  • Remove from heat and whisk in the powdered sugar, vanilla, and enough milk to create a smooth, spreadable frosting.
  • Spread the frosting evenly over the cooled bars.
  • Slice into squares and serve.

Serving and Storage Tips

Serve these zucchini bars at room temperature for the best texture and flavor. They pair wonderfully with coffee, tea, or a glass of cold milk. For a refreshing summer dessert, chill the bars before serving.

Store leftover bars in an airtight container at room temperature for up to 2 days. Refrigerate them for up to 5 days if your kitchen is warm or if you prefer a firmer frosting. Freeze individual bars in airtight containers for up to 3 months and thaw overnight in the refrigerator before serving.

15 Delicious Variations

  1. Chocolate Chip Zucchini Bars
    Fold 1 cup of semi-sweet chocolate chips into the batter for extra sweetness.
  2. Walnut Version
    Replace pecans with chopped walnuts for a slightly earthier flavor.
  3. Cream Cheese Frosting
    Swap the brown butter frosting for classic cream cheese frosting.
  4. Lemon Zucchini Bars
    Add 2 teaspoons of lemon zest to the batter and top with lemon glaze.
  5. Coconut Zucchini Bars
    Mix in 1 cup of shredded sweetened coconut.
  6. Raisin Spice Bars
    Add 1 cup of raisins for chewy bursts of sweetness.
  7. Maple Frosting
    Replace vanilla with maple extract for a rich autumn-inspired topping.
  8. Gluten-Free Bars
    Use a gluten-free all-purpose flour blend instead of regular flour.
  9. Whole Wheat Version
    Replace half of the flour with whole wheat flour for added fiber.
  10. Orange Cinnamon Bars
    Add fresh orange zest to complement the cinnamon.
  11. Pumpkin Spice Bars
    Replace the cinnamon with pumpkin pie spice.
  12. Almond Crunch Bars
    Use chopped almonds instead of pecans and add almond extract.
  13. Caramel Drizzle Bars
    Top the frosted bars with a drizzle of caramel sauce.
  14. Mini Bar Bites
    Bake in a mini muffin pan for bite-sized treats perfect for parties.
  15. Double Nut Bars
    Combine pecans and walnuts for extra crunch and flavor.

FAQs

1. Do I need to peel the zucchini?
No. The peel is tender and blends perfectly into the bars.

2. Should I squeeze the moisture from the zucchini?
No. The moisture helps keep the bars soft and moist.

3. Can I make these without nuts?
Yes. Simply leave out the pecans if preferred.

4. Can I freeze these bars?
Yes. Freeze frosted or unfrosted bars for up to 3 months.

5. How do I know when they’re done?
Insert a toothpick into the center. It should come out clean or with a few moist crumbs.

6. Can I use yellow squash instead of zucchini?
Yes. Yellow squash works as an excellent substitute.

7. Why brown the butter?
Brown butter adds a rich, nutty flavor that enhances the frosting.

8. Can I make them ahead of time?
Yes. They taste even better the next day after the flavors develop.

9. Can I reduce the sugar?
Yes. You can reduce the sugar slightly, although the texture may be a bit less tender.

10. What is the best way to shred zucchini?
Use the large holes of a box grater or a food processor with a shredding attachment.

Zucchini Bars with Brown Butter Frosting are an easy homemade dessert that combines moist zucchini cake, warm cinnamon, crunchy pecans, and rich brown butter frosting into every bite. They’re perfect for family gatherings, potlucks, holidays, or simply making the most of fresh garden zucchini.

Print
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Zucchini Bars with Brown Butter Frosting

  • Author: Lusine Svetlana

Description

These Zucchini Bars with Brown Butter Frosting are soft, moist, and packed with warm cinnamon flavor. Fresh zucchini keeps the bars tender, while crunchy pecans and rich brown butter frosting create the perfect sweet finish. They’re an excellent way to use up summer zucchini for a delicious dessert everyone will love.

Ingredients

For the Zucchini Bars

  • 1½ cups granulated sugar
  • 1 cup vegetable oil
  • 3 large eggs
  • 2 cups all-purpose flour
  • 1 teaspoon baking powder
  • ½ teaspoon salt
  • 1½ teaspoons ground cinnamon
  • 2 cups shredded zucchini (about 3 medium zucchini)
  • 1½ cups chopped pecans

For the Brown Butter Frosting

  • 6 tablespoons butter
  • 6 cups powdered sugar
  • 1 teaspoon vanilla extract
  • 8–10 tablespoons milk

Instructions

  1. Preheat the oven to 350°F (175°C) and grease a 15×10×1-inch baking pan.
  2. In a medium bowl, whisk together the flour, baking powder, salt, and cinnamon.
  3. In a large mixing bowl, beat together the sugar, vegetable oil, and eggs until smooth.
  4. Gradually add the dry ingredients to the wet ingredients and mix until just combined.
  5. Fold in the shredded zucchini and chopped pecans.
  6. Spread the batter evenly into the prepared baking pan.
  7. Bake for 30–40 minutes or until a toothpick inserted into the center comes out clean.
  8. Let the bars cool completely before frosting.
  9. For the frosting, melt the butter in a saucepan over medium heat until it turns golden brown and has a nutty aroma.
  10. Remove from heat and whisk in the powdered sugar, vanilla, and enough milk to create a smooth, spreadable frosting.
  11. Spread the frosting evenly over the cooled bars.
  12. Slice into squares and serve.

Notes

Serve these zucchini bars at room temperature for the best texture and flavor. They pair wonderfully with coffee, tea, or a glass of cold milk. For a refreshing summer dessert, chill the bars before serving.

Store leftover bars in an airtight container at room temperature for up to 2 days. Refrigerate them for up to 5 days if your kitchen is warm or if you prefer a firmer frosting. Freeze individual bars in airtight containers for up to 3 months and thaw overnight in the refrigerator before serving.

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