Baking Chocolate Chip Cookies with Brown Butter

Ingredients

• 1 cup (16 Tbsp; 226g) unsalted butter
• 1/2 cup (100g) granulated sugar
• 1 cup (200g) packed light or dark brown sugar
• 1 large egg + 1 egg yolk, at room temperature
• 2 teaspoons pure vanilla extract
• 2 and 1/2 cups (313g) all-purpose flour (spooned & leveled)
• 1 teaspoon cornstarch
• 1 teaspoon baking soda
• 1/2 teaspoon salt
• 2 Tablespoons (30ml) milk
• 1 and 1/2 cups (270g) semi-sweet chocolate chips