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Zucchini Bars with Caramel Frosting

Zucchini Bars with Caramel Frosting

These ultra-moist zucchini bars are infused with warm spices and topped with rich, buttery caramel frosting. Perfect for potlucks, parties, or anytime you need a show-stopping dessert.
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 1 hour 20 minutes
Course Dessert, Snack
Cuisine American
Servings 20 bars

Ingredients
  

Zucchini Bars

  • 2 cups grated zucchini do not peel; gently blotted but not squeezed dry
  • 1 ½ cups all-purpose flour
  • 1 tsp baking soda
  • ½ tsp salt
  • 1 ½ tsp ground cinnamon
  • ¼ tsp ground nutmeg
  • ½ cup granulated sugar
  • ½ cup brown sugar packed
  • 2 large eggs
  • ½ cup vegetable oil
  • 1 tsp vanilla extract

Caramel Frosting

  • ½ cup unsalted butter
  • 1 cup brown sugar packed
  • ¼ cup milk whole milk or 2% preferred
  • 2 cups powdered sugar
  • 1 tsp vanilla extract
  • 1 pinch salt optional, helps balance sweetness

Instructions
 

  • Preheat oven to 350°F (175°C). Grease a 9×13-inch baking pan.
  • In a large bowl, whisk together eggs, granulated sugar, brown sugar, oil, and vanilla until smooth.
  • In a separate bowl, mix together flour, baking soda, salt, cinnamon, and nutmeg.
  • Add the dry ingredients to the wet mixture and stir until just combined. Do not overmix.
  • Gently fold in the grated zucchini. Spread the batter evenly in the prepared baking pan.
  • Bake for 25–30 minutes or until a toothpick inserted into the center comes out clean. Cool completely in the pan on a wire rack.
  • To make the frosting, melt butter in a saucepan over medium heat. Add brown sugar and stir until dissolved.
  • Bring mixture to a gentle boil and cook for 1 minute, stirring constantly.
  • Remove from heat and carefully stir in the milk. Let cool for a few minutes until warm.
  • Whisk in powdered sugar, vanilla, and a pinch of salt (if using) until smooth.
  • Spread frosting over fully cooled bars. Let set for at least 30 minutes before slicing.

Notes

For extra flavor, fold in ½ cup chopped walnuts or chocolate chips to the batter. Store bars in an airtight container at room temperature for 3 days or in the refrigerator for 1 week.