Blueberry Popovers

Details

Ingredients

• 3 tablespoons butter, cut into 6 equal-sized pieces
• 1 cup whole milk
• 3 eggs, beaten
• ¼ cup white sugar
• 1 teaspoon vanilla extract
• 1 cup all-purpose flour
• ½ cup fresh blueberries
• 1 tablespoon white sugar
• 1 teaspoon ground cinnamon
• ¼ cup confectioners' sugar, or to taste
• 1 lemon, halved