Mayonnaise Cake
["1 c. dates", "1 c. sugar", "1 c. chopped nuts", "2 c. self-rising flour", "2 egg yolks plus mayonnaise to fill 3/4 c.", "1 tsp. baking soda", "1 c. boiling water"]
["Pour boiling water over dates.", "Add soda and let cool.", "Add remaining ingredients as listed.", "Bake in 2 or 3 (9-inch) pans for 25 to 30 minutes at 350\u00b0.", "When done, the layers will have a dark brown color. Frost with 7 minute frosting."]
["dates", "sugar", "nuts", "flour", "egg yolks", "baking soda", "boiling water"]