HEAT oven to 325ºF.
LINE 9-inch square pan with foil, with ends of foil extending over sides; spray with cooking spray. Arrange cookies, in single layer, on bottom of pan.
COMBINE coconut, sugar and flour in large bowl. Stir in egg whites and extract until well blended. Carefully spread over cookies. Drop small spoonfuls of jam over coconut mixture; swirl gently with knife to marbleize.
BAKE 28 to 30 min. or until center is almost set and edges are golden brown. Cool completely. Use foil handles to remove dessert from pan before cutting into bars.