All time favorite cookie.
Heat oven to 400°F. Combine all cookie ingredients in large bowl. Beat at low speed, scraping bowl often, until well mixed. Stir together 3 tablespoons sugar and cinnamon in small bowl. Shape dough into 1-inch balls; roll in sugar mixture. Place 2 inches apart onto ungreased cookie sheets. Bake for 8 to 10 minutes or until edges are lightly browned.