Preheat oven to 200°F. Combine cinnamon (1 cup + 2 Tablespoons or a 4.12 oz. bottle of McCormick Cinnamon) and applesauce (I use unsweetened applesauce) in a small mixing bowl until a smooth ball of dough is formed. (You may need use your hands to incorporate all of the cinnamon, or use a stand mixer with the paddle attachment.) *I ended up adding a little more applesauce--mine was still a little crumbly.
Using about 1/4 of the dough at a time, roll dough with a rolling pin to 1/4-inch to 1/3-inch thickness between two sheets of plastic wrap or parchment paper. Peel off top sheet of plastic wrap.
On a clean surface, cut dough into desired shapes with 2- to 3-inch cookie cutters. Make a small hole at top of ornament with drinking straw. Place ornaments on baking sheet lined with parchment paper.
Bake 2 1/2 hours. Cool the ornaments on wire rack or cooling rack. Or, to dry ornaments at room temperature, carefully place them on wire rack. Let stand 1 to 2 days or until thoroughly dry, turning occasionally.
Insert ribbon (I used bakers twine!) through holes and tie them in loops, to be able to hang on your tree.
If you pack them carefully, your ornaments can last 3-5 years, and even longer! I place them between paper towels, then into a ziplock bag to keep them fresh.