Vegan Thick Sauce Base

1/2 cup chopped vegetable(s) e.g. 1 onion, diced
Enough oil or vegan butter to coat frying pan
1 tbsp flour
3/4 cup water or vegetable stock
Salt and pepper to taste

Variations:
other spices
Seasonings:
chipotle veganaise
soy sauce
sriracha
soy milk
tofu sour cream
nutritional yeast
mustard

Over medium heat, simmer vegetable(s) in oil or vegan butter until tender. Reduce heat to low and coat with flour. Over high heat, add water or vegetable stock, stirring constantly until thickened.