Ingredients
Equipment
Method
- Preheat the oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper, leaving a 2-inch overhang on at least 2 sides for easy removal.
- In a medium bowl, whisk together the flour, baking powder, baking soda, and salt until well combined.
- In a large mixing bowl, whisk the brown sugar and melted butter until smooth and well combined.
- Add the egg and vanilla extract to the brown sugar mixture. Whisk vigorously until the mixture is thick and well incorporated.
- Add the dry ingredient mixture to the wet ingredients. Using a rubber spatula, stir until almost combined. Do not overmix.
- Add ¾ cup of your chosen mix-ins and stir until they are evenly distributed throughout the batter.
- Transfer the batter to the prepared baking pan and spread into an even layer. Press the remaining ¼ cup of mix-ins into the top of the batter.
- Bake for 32-36 minutes, or until the edges are set and golden brown and a toothpick inserted into the center comes out clean.
- Let the blondies cool completely in the pan before cutting into squares. Use the parchment paper overhang to lift them out for easy cutting.
Notes
Measuring Tips: Use a kitchen scale for best results. If measuring by cup, fluff flour first and level with a knife.
Storage: Store in an airtight container at room temperature for up to 3 days or refrigerate for up to 1 week.
Freezing: Wrap individual pieces in plastic wrap and freeze for up to 3 months. Thaw at room temperature for 2-3 hours.
Pan Options: Can also use a 9×9-inch pan for slightly thinner blondies. Metal pans work best for even baking.
Perfect Texture: Slightly underbaked blondies are better than overbaked ones. The center should look just set when done.