This is my favorite blondie recipe. It makes dense, rich, and fudgy blondies with a paper-thin, crinkly top. If you have it, use dark brown sugar. In our video, we use browned butter (adding an extra 5 minutes to the prep time). You can use plain melted butter in this recipe, but brown butter adds a lovely, toasty caramel flavor.
8 tablespoons (115g) unsalted butter, 1 stick
1 cup (190g) lightly packed dark or light brown sugar
1 large egg at room temperature
1 teaspoon vanilla extract
1/4 teaspoon almond extract, optional
1/4 rounded teaspoon fine sea salt, decrease a little if sensitive to salt
1 cup (130g) all-purpose flour
1 cup (170g) chocolate chips
1/2 cup optional extras like toasted nuts, dried fruit, or shredded coconut
Preheat the oven to 350°F (176°C). Lightly butter and line an 8-inch by 8-inch metal baking pan with aluminum foil or parchment paper.
Melt the butter or make brown butter (brown butter adds a toasted flavor). To brown butter, add the butter to a heavy-bottomed pan over medium-low heat. As the butter melts, continuously swirl it around the pan. It will melt, get a little foamy, and finally turn golden brown. Remove it from the heat when the butter is light brown and smells nutty.
Whisk the warm butter into the brown sugar until blended. The mixture will look greasy and gritty. Set aside for a few minutes to cool.
When the sugar and butter mixture is warm, not hot, add the egg, vanilla, almond extract (optional), and salt. Stir until smooth and ever so slightly lighter in color.
Add the flour in two additions, gently folding it into the batter after each addition until you no longer see streaks of flour.
Stir in the chocolate chips and any additional add-ins like nuts or dried fruit.
Spread the batter evenly in the prepared pan. It just covers the bottom of the pan. The batter is very thick, so gently pressing the batter into the corners helps.
Bake the blondies until the edges look dry and the middle looks shiny and slightly underbaked, 20 to 30 minutes.
Cool to room temperature before removing from the pan — this step is essential and helps the blondies set. Cut into 16 squares. Don’t be surprised if the blondies have not risen much (they should be about 1/2-inch thick). These are intended to be dense, rich, and a little fudgy.