Aztec Ice Box Cookies

Name: Aztec Ice Box Cookies
Cook time: 25 min
Total time: 25 min
Cuisine: American, Southern
Ingredients: 2 cups (500 mL) Five Roses All-purpose Flour; 4 Squares finely ground Baker's semi-sweet chocolate; 1 tbsp (15 mL) ground cinnamon; 1/2 tsp (2 mL) baking powder; 1/4 tsp (1 mL) salt; 1 cup (250 mL) butter softened; 1 cup (250 mL) packed brown sugar; 1 egg beaten; 1 tsp (5 mL) vanilla extract