Shape the dough into balls, 1.5 tablespoons each (use an ice-cream scoop
or heaping tablespoon), roll them in the cinnamon-sugar mixture, and place on the cookie sheet. Using your hands or the bottom of a glass, very slightly flatten each cookie, leaving them thick. Bake for about 8-10 minutes, until cookies begin to brown at the edges but the center is still soft. Cookies will appear undone but will continue to bake on the warm baking sheet. Leave cookies to cool on baking sheet for 10 minutes, then gently transfer to a wire rack to cool completely.