Brown Butter Chocolate Chip Scones

Ingredients

• 1/2 cup (113g) unsalted butter, cubed
• 2 cups (255g) all purpose flour, sifted
• 1 tablespoon baking powder
• 1/2 teaspoon fine sea salt
• 1/4 cup (50g) packed brown sugar
• 1/2 cup (118ml) cold heavy cream plus extra for the tops
• 1/4 cup (57g) cold sour cream
• 1 large egg yolk
• 1 teaspoon vanilla bean paste or pure vanilla extract
• 3/4 cup semisweet or dark chocolate chips (I used Ghirardelli grand chips)
• Demerara or turbinado coarse sugar for sprinkling