Low Cal Butter Sauce (Vegan Option) - cooking recipe

Ingredients

2 tablespoons butter (yes that is all that is needed!!!!!!)
2 tablespoons flour
1 teaspoon of butter to fry the flour
1 small red onion, finely chopped
1 bunch cilantro, washed and roughly minced
3 garlic cloves, peeled and minced fine
250 ml non-alcoholic carbonated water
1 tablespoon vinegar
1 tablespoon salt
1/2 cup whole milk

Preparation

1. In a sauce pan add the soda, vinegar, onions, garlic and cilantro and let it reduce.
2. when it has almost absolutely reduced to a fourth, filter the concentrated liquid to remove the solid parts (onions, cilantro -- ) save the liquid.
3. In the same pan add the 1 teaspoon butter and melt. To this add the flour and mix well. When the flour emits a cooked smell (not burnt) add the saved liquid and the milk one after the other slowly and let boil.Keep stirring constantly or else the flour will goop.
4. The sauce is ready when it is in a thick but pour-able consistency. Adjust salt and garlic to taste. Some like it strong and some just like a hint. You may also add the zest of a lemon to make a lemon butter garlic sauce. It is a good variation. I let couple of the cooked cilantro float in the sauce, but its optional.