Spaghetti Sauce with Vodka

Yield:	12 Servings
Categories:	Pasta

2		White onions, peeled and chopped
6		Garlic cloves, chopped
2	tb	Olive oil, or as needed
		Salt to taste
		Lots of freshly ground black pepper
3/4	c	Vodka mixed with 1 tbsp. vinegar
2	lb	Lean ground beef
2	lg	Cans whole tomatoes
		Basil (fresh or dried) to taste
1	lb	Mushrooms, cleaned & sliced
6		To 8 oz. jar (plus juices from jar), pimiento-stuffed green olives, sliced
		Chopped fresh Italian parsley