These almond croissant blondies are rich, chewy, and packed with sweet almond flavor. Made with swirls of almond filling, sliced almonds, and a hint of almond extract, they taste like a French almond croissants in blondie form.
Preheat the oven to 350°F and line an 9x9-inch square baking pan with parchment paper. Set aside.
Add the butter to a large mixing bowl and microwave until completely melted, about 1 minute. Let it cool for a few minutes, then whisk in the granulated sugar and brown sugar until smooth and glossy.
With a rubber spatula, gently fold the flour, baking powder, baking soda, and salt into the wet ingredients. Be careful not to overmix or the blondies can turn out dense instead of soft and chewy.
150 grams all purpose flour, ¼ teaspoon baking powder, ⅛ teaspoon baking soda, ¼ teaspoon salt
Evenly spread the batter into the prepared pan. Dollop spoonfuls of the almond filling over the top, then use a butter knife to swirl it into the batter. Avoid leaving large chunks of filling in one spot since it can cause the middle to sink.
130 grams almond filling
Sprinkle the sliced almonds over the top. Bake for 22-25 minutes, or until the edges are set and a toothpick inserted into the center comes out mostly clean. The center will look slightly underdone but will set as the blondies cool.
25 grams sliced almonds
Let the blondies cool in the pan for 10 minutes, then carefully lift them onto a wire rack to cool completely.
Dust generously with powdered sugar before slicing into squares and serving.
Powdered sugar
Notes
If using an 8x8" pan, the blondies will be slightly thicker and take about 5 extra minutes to fully bake.Storage: Store in an airtight container at room temperature for up to 3 days. Freezing: Let the blondies cool completely, then slice them into squares. Wrap each tightly in plastic wrap and place them in a freezer-safe container. Freeze for up to 2 months. Thaw at room temperature for a few hours before serving.