Preheat your oven to 200C (180C fan)
Cream together the softened butter, vegetable shortening, sugar, eggs and vanilla extract until white.
Stir in the flour, baking powder and salt. Be careful not to overmix your flour.
Shape the dough into spheres, approximately 1 tbsp per cookie.
Mix the remaining 2 tbsp of sugar with the cinnamon, then roll each ball of dough int his until they're evenly coated. Place each ball well spaced on ungreased baking sheets.
Bake for 8 to 10 minutes, then remove immediately from baking sheets and place onto cooling rack. Enjoy!