Lemon Sugar Cookie Sandwiches

INGREDIENTS
    1-½ cup Butter (I use unsalted)
    2 cups Sugar
    2 whole Eggs
    2 whole Eggs Yolks
    3 teaspoons Lemon Extract
    4 cups All-purpose Flour
    1 teaspoon Salt
    1 teaspoon Baking Powder
    2-4 drops Yellow Gel Food Coloring
    *zest of one lemon

DIRECTIONS
1.Heat oven to 350
2.In a mixer, beat butter and sugar until well combined, about 2 minutes.
3.Add in 2 eggs and 2 egg yolks and mix until combined.
4.Add in lemon extract and yellow food coloring; mix until combined. You may add more food coloring to achieve desired color.
5.If you want to use fresh lemon zest, add it now. I did not with these cookies.
6.In a separate bowl, sift together flour, salt, and baking powder. Slowly (about a cup at a time) add flour to butter mixture and combine. You can use a mixer or not, just depends on how strong you are.
7.Put dough in some Saran wrap and refrigerate for at least one hour. When you are ready to bake, heat oven to 350 degrees. Roll dough out, cut out cookies, and bake for 6-8 minutes.