Preheat oven to 375 degrees. Line two baking sheets with parchment paper or a silicone baking mat. Gather your ingredients so that you have everything close at hand on the counter or table.
Using a nut chopper or a knife, coarsely chop the pecans.
Prepare the Cookie Dough
In a large mixing bowl, cream together the room temperature butter, vegetable oil, granulated sugar, and powdered sugar.
Beat in the large egg and then the vanilla and butter extracts.
Using a small bowl, combine the all-purpose flour, baking soda, cream of tartar, and salt.
Add to the creamed mixture, and mix until combined. Stir in the chopped pecans.
Prepare Cookies for Baking
Measure out 1/2 cup of granulated sugar and place in a small bowl.
Roll the cookie dough into walnut-sized balls and then roll them in the bowl of sugar to coat.
Place each ball on the baking sheet, about 2 inches apart. Using a flat bottomed cup or glass, gently press each ball to flatten.
Bake in a preheated oven for 10 -12 minutes, until edges of cookies are just barely golden. Cool on a wire rack. This recipe will make 2 dozen cookies.
Notes
*Unless otherwise indicated, all butter used on this recipe site is salted.