1. Add the oil to a pot on the stove and heat it at medium to high heat.
2. As the oil heats, sift the flour and add to the pan stirring vigorously.
3. Fry the flour in the oil for a bit, stirring vigorously, don’t allow it to burn, turn down your heat if it starts to stick at any point.
4. Add the soy milk or other non-dairy milk and continue to stir and allow the sauce to gradually thicken.
5. You will usually get to the right thickness after it has reached boiling point and boiled for a few minutes.
6. When you’ve reached the desired thickness (keep in mind that the sauce will continue to thicken as it cools), remove from the heat and add any spices you choose, such as some salt and black pepper or garlic spice or whatever you choose.

Recipe sources [1]