Blueberry Fudgy Blondies (Printable)

Chewy bars with fresh blueberries and white chocolate, rich in buttery flavor and perfect for any occasion.

# What You'll Need:

→ Wet Ingredients

01 - ½ cup unsalted butter
02 - ½ cup white chocolate chips
03 - 1 cup granulated sugar
04 - 2 large eggs
05 - ½ teaspoon vanilla extract

→ Dry Ingredients

06 - 1 cup all-purpose flour
07 - ½ teaspoon salt

→ Add-ins

08 - ½ cup fresh blueberries, washed and dried

# Directions:

01 - Melt unsalted butter in a saucepan over medium heat. Place white chocolate chips in a heatproof bowl. Pour hot melted butter over chips and let stand for 5 minutes, then whisk until smooth.
02 - Allow the butter and chocolate mixture to cool for approximately 30 minutes until it thickens slightly.
03 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper and lightly coat with non-stick cooking spray.
04 - In a large mixing bowl, combine the cooled butter-chocolate mixture with granulated sugar. Whisk until fully incorporated and slightly lightened in color.
05 - Add vanilla extract and eggs to the mixture. Whisk again until smooth and fully combined.
06 - Add flour and salt to the wet mixture. Using a silicone spatula, gently fold until a batter just forms. Do not overmix.
07 - Gently fold in the blueberries. Pour batter into prepared pan and spread into an even layer.
08 - Bake for 35-45 minutes until the top and edges are golden brown and a toothpick inserted in the center comes out with a few moist crumbs or clean.
09 - Allow blondies to cool completely in the pan. Remove from pan using parchment and cut into 12 or 16 bars. Serve at room temperature.

# Expert Tips:

01 -
  • The white chocolate melts into the batter creating this fudgy, almost gooey center that somehow stays structurally sound when you bite into it.
  • Fresh blueberries burst with tart sweetness, cutting through the richness in a way that feels intentional, not accidental.
  • They're genuinely foolproof—no fancy techniques, just honest baking that rewards you within an hour.
02 -
  • Don't skip the cooling step for the butter-chocolate mixture—if you add it hot to the sugar, you risk cooking the eggs and ending up with scrambled blondies instead of smooth batter.
  • Blueberries need to be completely dry or they introduce moisture that can make the texture gummy instead of chewy.
03 -
  • A pinch of lemon zest added to the batter brightens everything without making them taste citrusy—it's a secret weapon that sounds weird until you try it.
  • If you want them fudgier, pull them out at 35 minutes; if you prefer them more cake-like, go the full 45 minutes and watch the color.
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