Lemon-Lime Bars

Prepare Candied Citrus Slices or Strips, (see recipe), if desired. Preheat oven to 350 degrees F. Line a 13x9x2-inch baking pan with heavy foil; set aside.

For crust, in large mixing bowl beat butter on medium to high 30 seconds. Add brown sugar; beat until combined. Beat in 2 cups of the flour until crumbly. Stir in 2 teaspoons of the lemon peel. Evenly press on bottom of prepared pan. Bake 20 minutes.

Meanwhile, for filling, in medium bowl combine eggs, granulated sugar, remaining 1/2 cup flour, lemon juice, baking powder, and nutmeg. Beat on medium 2 minutes. Stir in remaining lemon peel and the lime peel. Pour over hot crust. Bake 20 minutes more or until edges are browned and center appears set. Remove to rack; cool 1 hour. Refrigerate, covered, 2 hours.

To serve, sprinkle evenly with powdered sugar. Lift from pan using foil; cut into bars. Add Candied Citrus Slices or Strips, if desired. Store, covered, in refrigerator up to 3 days. Makes 16 to 20 bars.