2 1/4 c. flour
1/2 tsp. salt
1/2 tsp. baking soda
1/2 tsp. cream of tartar
1/2 c. butter, softened
1/2 c. sugar
1/2 c. confectioners sugar, plus extra for decorating
1/2 c. canola oil
1/2 tsp. lemon extract
1/2 tsp. vanilla extract
3/4 c. lemon curd, store bought or homemade
Preheat oven to 350 F.
In a small bowl, combine the flour, salt, baking soda, and cream of tartar. Set aside.
In a large bowl, cream butter and sugars until light and fluffy.
Beat in the oil, egg, and extracts.
Add flour mixture to creamed mixture. Stir until combined.
Drop one tablespoon of dough (I used a tartlet scoop) on a greased baking sheet (or two). Bake for 8 minutes.
Remove from the oven and, using the end of a wooden spoon handle, make an indentation in the center of each cookie. Fill with about a teaspoon of lemon curd. Return to the oven and bake for an additional 4-5 minutes, or until cookies are firm and lightly browning on the sides.
Remove to wire racks to cool.
Sprinkle with powdered sugar if you want.
Here's a link to the recipe I used: http://www.barbarabakes.com/lemon-bar-cookie-cups/