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+ servings
Sarah

Lemon Brownie Bars

Fudgy lemon brownies with a shiny lemon glaze — bright, chewy, and slice-clean. One bowl, one pan, perfect for summer parties and birthdays.
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Prep Time 15 minutes
Cook Time 24 minutes
cool + set 1 hour
Total Time 1 hour 20 minutes
Servings: 16 bars
Course: Dessert
Cuisine: American
Calories: 210

Ingredients

  • 0.5 cup unsalted butter, melted and slightly cooled (113 g)
  • 1 cup granulated sugar (200 g)
  • 2 large eggs, room temp
  • 1 tsp vanilla extract
  • 2 tbsp finely grated lemon zest (from 2–3 lemons)
  • 3 tbsp fresh lemon juice
  • 1 cup all-purpose flour (125 g)
  • 1 tbsp cornstarch
  • 0.5 tsp fine sea salt
  • 1.5 cups powdered sugar (180 g)
  • 2–3 tbsp fresh lemon juice, plus extra as needed
  • extra lemon zest, for topping

Equipment

  • 8×8-inch baking pan
  • Parchment paper
  • whisk
  • zester

Method

  • Heat oven to 350°F / 175°C. Line an 8×8-inch pan with parchment.
  • Whisk melted butter and sugar for 60 seconds until glossy.
  • Whisk in eggs one at a time, then vanilla, lemon zest, and lemon juice.
  • Sift in flour, cornstarch, and salt; fold just until smooth.
  • Spread batter in pan; bake 20–24 minutes until edges set and center is just barely jiggly.
  • Cool 30 minutes in pan.
  • Whisk powdered sugar with lemon juice to a pourable glaze; spread over warm bars. Top with extra zest.
  • Set 20–30 minutes until glaze is firm, then lift out and slice into 16 bars.

Nutrition

Calories: 210kcalCarbohydrates: 30gProtein: 2gFat: 9gSaturated Fat: 5gMonounsaturated Fat: 2gCholesterol: 50mgSodium: 85mgPotassium: 40mgSugar: 25gVitamin A: 250IUVitamin C: 2mgCalcium: 10mgIron: 0.5mg

Notes

Double batch: 9×13 pan; bake 22–26 minutes. Add-ins: 1 Tbsp poppy seeds, or swirl ⅓ cup raspberry jam. Lighter option: Reduce base sugar to ¾ cup and glaze to 1 cup powdered sugar. Equipment: 8×8 pan, parchment, whisk, zester.
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