A cross between lemon bars and Key lime pie, these Creamy Lime Bars are a refreshing, easy-to-bake dessert. Use McCormick® pure lime extract to add citrusy lime flavor.
Preheat oven to 325°F. Mix graham cracker crumbs and butter in small bowl. Press firmly onto bottom of 9-inch foil-lined square baking pan. Refrigerate until ready to use.
Stir granulated sugar and flour with wire whisk in large bowl until well blended. Add remaining ingredients; mix well. Pour over crust.
Bake 45 to 50 minutes or until center is almost set. Cool completely in pan on wire rack.
Refrigerate 4 hours or overnight. Lift out of pan onto cutting board. Cut into bars. Sprinkle with confectioners’ sugar, if desired. Store leftover bars in refrigerator.