Strawberry Nut Squares

11 x 7 pan
Crust:
1 cup crushed vanilla wafer cookies
Filling:
1 c. butter
1 c. powdered sugar
2 egg yolks
Add: 3/4 c. finely chopped nuts
Add: 2 stiffly beaten egg whites
Spread over crumbs.
Next layer:
Spoon 2 c. sliced strawberries over cream
Next layer:
1 c. beaten and sweetened whipping cream
Next layer:
1 c. crushed vanilla wafers, crushed
Chill overnight
Top with whipped cream