In a bowl, combine flour, cornmeal, baking powder, sugar, salt and cream of tartar. Cut in shortening until mixture resembles coarse crumbs. Stir in milk just until moistened.
Turn onto a floured surface; lightly knead 10-12 times. Roll or pat to 1/2-in. thickness. Cut with a 2-1/2-in. maple leaf cookie cutter or a biscuit cutter. Place on a lightly greased baking sheet. Combine butter and syrup; lightly brush over tops of biscuits.
Bake at 425° for 10-12 minutes or until golden brown. Brush with remaining syrup mixture.