1Combine flour, cream of tartar, baking soda and nutmeg in a bowl and set aside.
2Beat together in a large bowl the melted shortening and the brown sugar. Beat in the eggs, then the vanilla extract. Gradually blend in the dry ingredients.
3Shape dough into a log measuring 1-1/2 inches in diameter. Wrap log in waxed paper or foil and chill for 4 hours or overnight.
4Preheat oven to 375 degrees F (180 degrees C). Lightly grease 2 baking sheets.
5Slice log into slices 1/4 inch thick. Place slices 1 inch apart on the baking sheets. Bake for 8-10 minutes until lightly colored. Cool on wire racks.
Footnotes
Tip
Aluminum foil helps keep food moist, ensures it cooks evenly, keeps leftovers fresh, and makes clean-up easy.