Creamy Mushroom Soup with Fresh Herbs and Aromatics - Yummy Gusto

Ingredients

• 2 tablespoons unsalted butter
• 1 tablespoon olive oil
• 1 small onion, finely diced
• 2 cloves garlic, minced
• 1 teaspoon fresh thyme leaves or 0.5 teaspoon dried thyme
• 450 grams mushrooms (cremini, button, or portobello), sliced
• 950 millilitres vegetable or chicken broth
• 1 tablespoon all-purpose flour (optional, for thickening)
• 240 millilitres heavy cream or half-and-half
• Salt and freshly ground black pepper, to taste
• Fresh parsley, chopped, for garnish
• Optional: 30 millilitres white wine or dry sherry for deglazing