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| salted butter: 1 cup (softened) |
| vegetable oil: 1 cup |
| granulated sugar: 1 cup |
| powdered sugar (unsifted): 1 cup (sifted) |
| eggs: 2 (large) |
| vanilla extract: 1 tsp |
| all-purpose flour (unsifted): 4 cups |
| salt: 1 tsp |
| baking soda: 1 tsp |
| cream of tartar: 1 tsp |
Credit: Food.com