Creamy Lemon Squares

Here's a recipe a co-worker shared with me recently and it is divine! Great cool summery treat for an office gathering, baby or bridal shower, or picnic.

Creamy Lemon Squares

20 Reduced Fat NILLA Wafers, finely crushed
1/2 cup flour
1/4 cup firmly packed brown sugar
1/4 cup (1/2 stick) cold margarine
1 pkg. (8 oz.) cream cheese, softened (she used the 1/3 less fat and it was just as good)
1 cup granulated sugar (can use Splenda)
2 eggs
2 Tbsp. flour
3 Tbsp. grated lemon peel, divided
1/4 cup fresh lemon juice
1/4 tsp. baking powder
2 tsp. powdered sugar

PREHEAT oven to 350ºF. Line 8-inch square baking pan with foil, with ends of foil extending over sides of pan; set aside. Combine wafer crumbs, 1/2 cup flour and the brown sugar in medium bowl. Cut in margarine with pastry blender or two knives until mixture resembles coarse crumbs; press firmly onto bottom of prepared pan. Bake 15 min.

MEANWHILE, beat cream cheese and granulated sugar with electric mixer on medium speed until well blended. Add eggs and 2 Tbsp. flour; mix well. Blend in 1 Tbsp. lemon peel, lemon juice and baking powder; pour over crust.

BAKE 25 to 28 min. or until center is set. Cool completely. Cover and refrigerate at least 2 hours or overnight. Sprinkle with powdered sugar and remaining 2 Tbsp. grated lemon peel just before cutting into squares to serve. Store leftover squares in refrigerator.