Key Lime Bars

1 cup butter, softened

2 1/3 cups all-purpose flour, divided
1/2 cup powdered sugar
4 large eggs

1 3/4 cups sugar
1 tsp. baking powder
1/4 tsp. salt
3/4 cup Key lime juice

1. Beat butter at medium speed with an electric mixer until creamy. Gradually add 2 cups flour and 1/2 cup powdered sugar. Beat just until a smooth dough is formed. Press into a parchment paper-lined 13- x 9-inch baking pan.

2. Bake at 350° for 20 minutes or until lightly browned.
3. Stir together eggs, remaining 1/3 cup flour, 1 3/4 cups sugar, and next 3 ingredients in a large bowl; pour over baked crust.

4. Bake at 350° for 25 minutes or until set. Let cool completely in pan; cut into squares.