Ingredients:
- 1 cup (225g) unsalted butter, browned and cooled slightly
- ¾ cup (150g) granulated sugar
- ½ cup (100g) packed light brown sugar
- 1 large egg, room temperature
- 1 egg yolk, room temperature
- 2 tbsp (12g) fresh lemon zest
- 1 tsp (5ml) vanilla extract
- 2 ¼ cups (280g) all-purpose flour
- 1 tsp (5g) baking soda
- ½ tsp (3g) salt
- 1 cup (170g) white chocolate chips
- 1 tbsp (8g) granulated sugar
Instructions:
- Place butter in a saucepan over medium heat. Melt and continue cooking, whisking constantly, until the butter foams and brown bits form at the bottom. Remove immediately from heat.
- Stir the lemon zest into the hot browned butter. Let the butter cool for 10 minutes to prevent scrambling the eggs.
- In a large bowl, whisk the browned butter with the granulated and brown sugars until smooth.
- Beat in the egg, egg yolk, and vanilla extract on medium speed until the batter looks pale and slightly fluffy.
- Sift in the flour, baking soda, and salt. Fold gently with a spatula until just a few streaks of flour remain.
- Fold in the white chocolate chips until evenly distributed.
- Preheat oven to 350°F (175°C). Scoop rounded portions of dough onto parchment-lined baking sheets, sprinkle with additional granulated sugar, and bake for 12 minutes.