Oatmeal Date Squares

I have a cookbook, The Harmony Kitchen Cookbook published by the Twin Falls Chapter of Sweet Adelines, April 1977, that Grandma Birrell gave to me. I thought that it would be nice to post all of her recipes.

2 eggs
1/2 cup sugar
1/2 teaspoon vanilla
1/2 cup flour
1/2 teaspoon salt
1/2 teaspoon baking powder
1 cup oatmeal
1 cup chopped nuts
2 cups chopped dates

Blend eggs, sugar and vanilla until light and fluffy. Mix dry ingredients together; then stir into egg-sugar mixture. Blend oats, nuts and dates into batter. Spread in buttered 9"square pan. Bake in slow oven, 325, for 35 to 40 minutes or until brown. Cut into squares while still warm and dust with powdered sugar if desired.