Lemon Squares

Okay, so three dessert posts in one day. I know what you're thinking...but I promise we didn't eat these all ourselves! I baked them all for a party we went to! So, happy birthday Andy...sorry Charlie ruined the surprise :)
Lemon Squares
Source: Food and Family, Spring 07

20 vanilla wafers, crushed
1/2 C flour + 2 T
1/4 C brown sugar
1/4 C cold butter
1 pkg. (8 oz) cream cheese
1 C sugar
2 eggs
1 T grated lemon peel
1/4 C fresh lemon juice
1/4 tsp baking powder

Preheat oven to 350°. Line an 8" square baking pan with foil. Combine wafer crumbs, 1/2 C flour, and brown sugar in medium bowl. Cut in butter with pastry blender. Press firmly into bottom of pan. Bake 15 minutes.

While baking, beat cream cheese, and sugar with mixer on medium speed. Add eggs and 2 T flour. Mix well. Blend in lemon peel, lemon juice, and baking powder. Pour over baked crust.

Bake 25-28 minutes. Cool completely. Cover and refrigerate at least 2 hours or overnight. Sprinkle with powdered sugar. Cut into squares.