(don't know why they're called that...they just ARE

)
These are a thin, crispy, melt in your mouth sugar cookie recipe. They make very delicate, pretty cookies-straight from my great-grandmother's kitchen!
1 C. white sugar
1 C. powdered sugar
1 C. butter-softened (no substitute)
1 C. vegetable oil
2 eggs
1 tsp. vanilla
1 tsp. salt
1 tsp. baking soda
1 tsp. cream of tartar
4 1/4 C. flour
pinch of fresh ground nutmeg
Preheat oven to 350 degrees.
Mix together dry ingredients (salt, baking soda, cream of tartar, flour, and nutmeg) in medium bowl. Set aside.
Cream together sugars, butter, and oil in large bowl. Add eggs, one at a time, and vanilla. Add flour mixture to butter mixture, about a quarter of the bowl at a time. Mix until incorporated.
Make 3/4" balls of dough, place on ungreased cookie sheet. Flatten balls of dough to 1/8" thich with the bottom of a glass dipped in sugar. (I use colored sugar sprinkles for a festive touch.) Bake 5 minutes and check-they burn easily! They are done when JUST golden on edges. Cookies crisp when cooled on a wire rack. Store in airtight container.