Preheat oven to 325°.
Beat egg whites (at room temperature) at high speed of an electric mixer until foamy.
Gradually add 1 cup sugar, 2 tablespoons at a time, beating until stiff peaks form.
Fold in cracker crumbs, baking powder, pecans, and vanilla.
Spoon meringue mixture into a buttered 9 inch pie plate. Bake for 30 minutes. Let cool.
Meanwhile, beat whipping cream at high speed until foamy; gradually add 2 tablespoons sugar, beating until soft peaks form.
Fold in sliced peaches and spoon evenly over meringue crust
