Holiday Snickerdoodles Cookies

2 Tbsp red sugar sprinkles
1 Tbsp ground cinnamon, divided
2 Tbsp green sugar sprinkles
1 1/2 cups sugar
1/2 cup shortening
1/2 cup butter, softened
2 eggs
2 3/4 cups all-purpose flour
2 tsp cream of tartar
1 tsp baking soda
1/4 tsp salt

Heat oven to 400 degrees.
Prepare the sprinkles:  Get out 2 shallow bowls. In one put the red sugar sprinkles and 1 1/2 teaspoons of the cinnamon, in the other put the green sugar sprinkles and remaining 1 1/2 teaspoons of cinnamon. Mix the sprinkles and cinnamon together; set aside.
Prepare the dough:  In large bowl, put the sugar, shortening, butter, and eggs and beat with an electric mixer on medium speed until fluffy.
In a separate bowl, sift together the flour, cream of tartar, baking soda, and salt.
With electric mixer running on low, slowly add the flour mixture until incorporated and a dough forms.
Using a melon baller or teaspoon, shape balls out of the dough, about 3/4 to 1 inch in diameter.
Roll the balls of dough through the sugar sprinkle mixtures, some in each, combinations of colors, or as you like.
Place the dough balls on an ungreased cookie sheet, keeping about 2 inches between each one.
Bake in preheated oven for 8 to 10 minutes.
Remove and let cool on cookie sheet for 1 minute, then remove to a cooling rack.
Let cool completely before putting away.
Cool completely, about 30 minutes.