⅓ cup plus 1 tablespoon rainbow sprinkles, divided
Garnish: confectioners’ sugar
Instructions
Preheat oven to 350°. Spray a 10-inch cast-iron skillet with baking spray with flour.
In a large bowl, beat butter and sugars with a mixer at medium speed until fluffy, 2 to 3 minutes, stopping to scrape bowl. Add egg, beating well. Beat in vanilla.
In a medium bowl, whisk together flour, baking powder, and salt. With mixer on low speed, gradually add flour mixture to butter mixture, beating until combined. Fold in ⅓ cup sprinkles. Spread batter into prepared pan. Sprinkle remaining 1 tablespoon sprinkles onto batter.
Bake until a wooden pick inserted in center comes out clean, 30 to 35 minutes. Let cool completely in pan on a wire rack. Cut into wedges. Garnish with confectioners’ sugar, if desired. Store in an airtight container for up to 3 days.
Recipe by Southern Cast Iron at https://southerncastiron.com/skillet-sprinkle-sugar-cookie/