Roasted Onion and Garlic Mashed Potatoes Dec 31, 1999 INGREDIENTS:Onion: 2 cups white onion diced ¼-inch thick ¼ cup garlic, coarsely chopped 1 Tbsp. olive oilPotatoes: 8 cups potatoes, peeled, cut in half 8 cups waterSeasonings: 6 Tbsp. butter ½ cup sour cream 2 tsp...