pre heat oven to 375*f (2.)Beat butter,shortening,and 1cup suger in bowel until fluffy,Add eggs,beat thoroughly.Stir together flour,cream of tartar.baking soda&salt;gradually add to butter mixture.beating until well blended.
Stir in toffee bits.(3)Stir togeather remaining 3Tabls of sugar and cinnamon mixture,shape dough into 1 1/2-inch balls roll in cinnamon&sugar mixture. place on ungreased cookie sheets.
(4)Bake 9-11 minutes or until lightly browned around edges.cool 1 minute;then remove from cookie sheets to wire racks. Cool completely