Preheat oven to 375 degrees. In a mixing bowl, whisk together flour, baking soda, baking powder, cream of tartar, and salt, set aside.
In the bowl of an electric stand mixer fitted with the paddle attachment, cream together butter, vegetable oil, granulated sugar and powdered sugar until blended. Mix in egg and vanilla.
With mixer set on low speed, slowly add in dry ingredients and mix until combined.
Scoop dough out by the heaping tablespoonfuls and shape into balls, transfer dough balls to Silpat lined baking sheets spacing cookies 2-inches apart, flatten slightly and top with sprinkles as desired.
Bake in preheated oven 10 minutes. Remove from oven and cool on a wire rack. Store in an airtight container.
*The colored sprinkles of course aren't traditionally Amish so if you'd like you can just sprinkle with some sugar.Recipe adapted from Taste of Home