These Blueberry Blondies are thick, chewy, and bursting with juicy blueberry flavor. Made with a rich brown sugar blondie base, they’re studded with fresh blueberries and swirled with blueberry jam for an extra fruity punch. Finished with a creamy white chocolate drizzle, these easy bars come together in under 30 minutes—no mixer needed!
Preheat oven to 350 F/180C and butter and line with parchment an 8 inch square baking pan.
In a small saucepan, melt the butter. Remove from heat and let cool to room temperature.
In a bowl, whisk together the flour, salt and baking soda.
In a large bowl, whisk together the brown sugar and warm melted butter until it cools and comes together well (2-3 minutes). Mix in the egg, egg yolk and vanilla extract
Gently fold in the blueberries into the blondie batter making sure not to overmix.
Pour the batter into the prepared pan, smooth the top.Spoon a few dollops of the blueberry jam and swirl carefully using a knife or skewer.
Bake for about 25-30 mins, or until the top of the bars are dry, golden brown, and a toothpick inserted in the center comes out with a few moist crumbs.
Remove from oven and place on a wire rack.
While the blondies are cooling melt the white chocolate in microwave in 30 second intervals.Drizzle the melted white chocolate over the blondies.
Once the white chocolate drizzle has set cut the blondies into pieces.
Notes
Don’t Overmix the blueberries: Overmixing can lead to blueberries bleeding into the batter and turning it blue.
Add white chocolate: If you love white chocolate you can ½ cup of white chocolate chips or chunks into the batter along with the blueberries.
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