French Onion and Mushroom Soup
Serves 6
Note: Caramelizing the onions slowly and using good-quality chicken stock is the key to this recipe. Feel free to leave out the mushrooms if you prefer a more traditional soup. If you have homemade beef broth, use that instead of the chicken variety, if you prefer. From Meredith Deeds.
• 3 tbsp. unsalted butter, divided
• 1 lb. cremini mushrooms, sliced (see Note)
• 3 large yellow onions, thinly sliced
• 3 garlic cloves, minced
• 3/4 tsp. salt, or more
• 1/2 tsp. freshly ground black pepper, or more