Blueberry Blondies (Printable)

Soft, chewy blondies infused with juicy blueberries and vanilla, perfect for dessert or snacking.

# What You'll Need:

→ Dry Ingredients

01 - 1 1/2 cups all-purpose flour
02 - 1/2 teaspoon baking powder
03 - 1/2 teaspoon salt

→ Wet Ingredients

04 - 1/2 cup unsalted butter, melted and cooled
05 - 1 cup light brown sugar, packed
06 - 1 large egg
07 - 2 teaspoons vanilla extract

→ Add-Ins

08 - 1 cup fresh or frozen blueberries
09 - 1/2 cup white chocolate chips (optional)

# Directions:

01 - Preheat the oven to 350°F. Line an 8x8-inch baking pan with parchment paper and lightly grease.
02 - In a medium bowl, whisk together flour, baking powder, and salt until evenly distributed.
03 - In a large bowl, stir melted butter and brown sugar until smooth. Whisk in the egg and vanilla extract until fully incorporated.
04 - Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix.
05 - Gently fold in the blueberries and white chocolate chips if using, being careful not to crush the berries.
06 - Spread the batter evenly in the prepared pan, using a spatula to smooth the surface.
07 - Bake for 28-32 minutes, or until the edges are golden and a toothpick inserted into the center comes out with a few moist crumbs.
08 - Cool completely in the pan before lifting out and cutting into bars. Store in an airtight container.

# Expert Tips:

01 -
  • The jammy blueberries explode against buttery vanilla dough like little pockets of sunshine
  • These come together in one bowl with zero fancy techniques but taste like you spent all day in the kitchen
02 -
  • Overmixing after adding the dry ingredients makes tough blondies—fold gently and stop as soon as flour disappears
  • Testing with a toothpick too early gives false results—wait for those golden edges before checking
03 -
  • Let the melted butter cool for 10 minutes or it will cook your eggs when you add them
  • Room temperature ingredients blend together seamlessly—cold egg + hot butter = tiny scrambled egg pieces