MUSHROOM GRAVY

2 cups	mushrooms crimini white button etc (chopped)
1 ½ tablespoons	non-dairy butter (or olive oil)
1	shallot (or 1/2 an onion)
2 clove	garlic (minced)
¼ teaspoon	salt
¼ teaspoon	ground pepper
½ teaspoon	rosemary (minced, optional)
1 ½ tablespoons	Maggi (or soy sauce, seasoning optional but recommended)
2 tablespoons	nutritional yeast (optional)
2 tablespoons	whole wheat flour (or all-purpose, or sub 1/2 tablespoon corn starch)
½ cup	unsweetened plain almond milk
1 cup	vegetable broth (or more if thinner gravy desired)