When we lived at Granville, North Dakota, I remember eating these when we visited at the home of Helen and Oscar.

3 Eggs beaten lightly
1 cup sugar
1/2 teaspoon salt
1 cup flour (Half bread; half cake)
1 teaspoon baking powder
2 teaspoons vanilla
1 cup nuts
1 cup chopped dates

Bake 20 minutes in a 450 (slow) oven.
Cut into strips and, while still hot, roll in powdered sugar.