Preheat oven to 350 degrees

Butter and flour a 9 inch pie plate

Finely chop the walnuts and combine with graham crackers

Beat egg whites with cream of tartar until soft peaks form

Slowly beat in the baking powder and then the sugar 1 tablespoon at a time

The meringue may be more syrupy than usual

Fold in the graham cracker crumbs and nuts

Spread in pie plate

Bake for 30 minutes or until puffed and set

Cool several hours on a rack

One or two hours before serving whip cream with powdered sugar, espresso and Kahlua until stiff

Spread over torte and chill until serving time.