Creamy Potato Soup With Bacon Vinaigrette

Ingredients

• 1 tablespoon butter
• 1 large onion diced
• 1 large carrot diced
• 1 rib celery diced
• 3 cloves garlic diced
• 1 sprig rosemary chopped
• 1 teaspoon salt
• 6 medium russet potatoes (about 2 lbs.) peeled and diced into 1' cubes
• 7 cups chicken stock or water
• 1 cup low fat sour cream
• salt and pepper to taste
• 4 pieces thick cut bacon
• 3 green onions finely sliced
• 3 tablespoons white wine vinegar
• 2 tablespoons olive oil
• pinch salt