Preheat oven to 350°F. Spray 8x8-inch baking dish with cooking spray. Combine flour, baking powder and salt in medium bowl; set aside.
Cream Fleischmann’s and sugar in large bowl with electric mixer on medium speed 1 to 2 minutes or until light and fluffy. Add Egg Beaters and vanilla extract; mix until well blended. Mix in peanut butter. Gradually add flour mixture beating on low speed just until combined.
Press 2/3 of dough evenly into baking dish. Top with strawberry jam. Break remaining 1/3 of dough into small pieces by hand and sprinkle over jam.
Bake 35 to 40 minutes or until browned lightly. Cool on wire rack at least 1 hour. Cut into 24 bars.