Preheat oven to 400 degree F. Line cookie sheets with parchment paper or foil; set aside. In a food processor process the oats until finely ground. In a medium bowl combine ground oats, flours, cinnamon, baking soda, cream of tartar, and salt; set aside.
In a large mixing bowl beat butter and shortening with an electric mixer on medium to high speed for 30 seconds. Add 1-1/2 cups sugar and beat until combined. Beat in eggs and vanilla. Beat or stir in flour mixture. Using a heaping teaspoon for each, roll dough into balls; roll in 1/3 to 1/2 cup sugar. Place on prepared cookie sheets about 2 inches apart. Flatten to a little less than 1/2 inch thick and use your fingers to shape into hearts by shaping one end into a point and the other into two rounded shapes. Bake for 8 to 10 minutes or until set and lightly browned. Cool 1 minute on cookie sheet. Cool completely on wire racks. Makes about 60 cookies.