Little Apricot Cakes

INGREDIENTS

• 2 tablespoons raw sugar
• 1 teaspoon finely grated lemon zest
• 6 tablespoons (3/4 stick) unsalted butter, room temperature
• 1/3 cup sugar
• 1 1/2 teaspoon baking powder
• 1 teaspoon vanilla extract
• 1/4 teaspoon kosher salt
• 2 apricots, halved, pitted, cut into 1/4" wedges
• 1/3 cup whole milk
• 1 large egg
• Nonstick vegetable oil spray
• 1 cup all-purpose flour