Mix the margarine with the sugar until it becomes creamy. Add the oil, salt, and vanilla, then combine with the flour until you get a soft dough.

Take some dough, shape it into balls, press them with a potato mold dipped in sugar, then arrange them on a baking sheet lined with parchment paper or greased with oil. Bake in a preheated oven at low heat until done. They turn out delicious and crumbly, and make a large quantity.