Creamy Roasted Red Pepper Soup

In a Dutch oven over medium heat, heat the butter and olive oil. Add the onions, garlic, and oregano and cook for 3 minutes, stirring occasionally. Add the potato and roasted red peppers and stir, cooking for 3 more minutes. Stir in the tomato paste and cook for 2 more minutes. Sprinkle in the salt and pepper and turn up the heat to medium-high.

Pour in the white wine and let it reduce for a couple of minutes, then pour in the stock. Bring the mixture to a gentle boil, then reduce the heat to medium-low and simmer until the potatoes are very tender, about 18-20 minutes. Puree the soup using an immersion blender (or you can let it cool and puree it in a regular blender.) Add the cream and red wine vinegar and heat for a couple of minutes. Taste and adjust seasonings, then serve with grated Parmesan and fresh oregano leaves.