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Easy Lemon Blueberry Blondies

Easy Lemon Blueberry Blondies

Chewy, lemony blondies studded with juicy blueberries and finished with a bright lemon glaze. One bowl, 40 minutes, no mixer.
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Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes
Servings: 16
Calories: 120kcal

Ingredients
 

Main Ingredients

  • 0.5 cup unsalted butter melted and cooled
  • 1 cup granulated sugar
  • 2 large egg room temperature
  • 1 tsp vanilla extract
  • 1 tbsp lemon zest from 1–2 lemons
  • 2 tbsp lemon juice freshly squeezed
  • 1.25 cup all-purpose flour for batter
  • 1 tsp baking powder
  • 0.5 tsp kosher salt
  • 1 cup fresh blueberries pat dry if washed
  • 1 tsp all-purpose flour for tossing blueberries
  • 1 sheet parchment paper for lining an 8x8 inch pan
  • 0.75 cup powdered sugar for glaze
  • 1.5 tbsp lemon juice for glaze; add more to thin
  • 0.5 tsp lemon zest optional, for glaze

Instructions

Preparation Steps

  • Preheat oven to 350°F. Line an 8x8 inch baking pan with parchment paper, leaving overhang for easy removal.
  • Toss blueberries with 1 tsp flour to lightly coat; set aside.
  • In a large bowl, whisk melted butter and granulated sugar until glossy and combined, about 30 seconds.
  • Whisk in eggs one at a time until smooth, then whisk in vanilla, lemon zest, and lemon juice.
  • Add flour, baking powder, and salt to the bowl. Fold with a spatula just until no dry streaks remain; do not overmix.
  • Gently fold in the coated blueberries. Spread batter evenly into the prepared pan.
  • Bake 24–28 minutes, until edges are set and a toothpick inserted near the center comes out with a few moist crumbs (not wet batter).
  • Cool in the pan for 20 minutes. Whisk powdered sugar with lemon juice (and optional zest) until smooth; drizzle over blondies. Let glaze set, then lift out and cut into 16 squares.

Notes

For thicker bars, bake in a 9x5 inch loaf pan and extend bake time slightly. Frozen blueberries work—do not thaw; toss with flour and add 2 minutes to bake time. Avoid overmixing to keep the crumb tender.