In a large mixing bowl, cream together sugar, powdered sugar, oil, butter, and vanilla extract.
In another bowl, pre-mix flour, baking soda, and cream of tartar.
Add dry mixture into the creamed mixture and mix well.
Take teaspoonfuls of tough and roll out into balls.
Place on cookie sheet and press to about the size of a nickel (this may seem small, but they will expand)
Bake for 8-11 minutes or until the cookies start to brown lightly. Remove them from the oven and cool completely.
For the Icing:
In a small bowl, stir together confectioners' sugar and milk until smooth. Beat in corn syrup and almond extract until icing is smooth and glossy. If icing is to thick add more corn syrup or milk.
(optional) If using food coloring, divide into separate bowls, and add food colorings to each to desired intensity.
Cookie Assembly:
Make sure cookies are cooled at room temperature before decorating.
Paint cookies with icing by using a brush or spread with a spoon.
Sprinkle on top with sugar sprinkles before the icing dries.
Notes
If you want to cut shapes, roll out the dough into the same thickness as above before cutting shape. For crispy cookies, bake for slightly longer than 8 minutes. Keep in mind that the cookies will keep cooking once out of the oven until they are cooled to room temperature. The icing should solidify and become glossy at room temperature.