Mushroom Gravy

Bahan-bahan (6 porsi)

• 3 tablespoons butter (or vegan butter),
• 1/2 cup diced white onion, diced
• 1 pound baby bella mushrooms, sliced
• 2 large cloves garlic, minced
• 3 tablespoons all-purpose flour
• 1/4 cup dry white wine
• 2 1/2 cups vegetable stock
• 2 teaspoons fresh thyme leaves
• 2 teaspoons white miso paste*
• fine sea salt and freshly-cracked black pepper