.Preheat oven to 350deg. Grease 13x9 inch baking pan.
crust; Beat flour, butter,and brown sugar in small mixer bowl until crumbly.
Press into pan , bake for 12-15 min until lightly brown.
Filling; Beat eggs ,cornsyrup,granulated sugar, butter and vanilla in med bowl with wire wisk. stir in chunks and nuts. pour evenly over baked crust. bake for 25-30 min or until set. cool completely in pan on wire rack.