Cream together the butter and sugar and then add the egg whites. Then add flour and nuts. Pat half the mixture in the bottom of a greased 9X9 dish. I like to press it down with a fork.

Spread jam over the top (I use Blackberry Jam but you can use any jam you wish) then drop the rest of the mixture on top. Bake on 350 for 35-40 minutes until the top browns a little.

Let cool and then cut in to squares. Makes about 9 bars, depending on how you cut them.