Root Vegetable Mafé

Ingredients

• 1 tablespoon neutral oil, such as refined peanut or vegetable
• 1 medium yellow onion (8 ounces), diced
• 2 cloves garlic, minced or finely grated
• 2 tablespoons tomato paste
• 2 cups unsweetened creamy peanut butter
• 4 cups no-salt-added vegetable broth or water, plus more as needed
• 1 bay leaf
• 1 Scotch bonnet or habanero chile, left whole (optional)
• 1 1/2 teaspoons fine salt, plus more as needed
• 1 teaspoon freshly ground black pepper
• 4 medium carrots (12 ounces total), cut into 2-inch chunks
• 1 large russet potato (10 ounces), peeled and cut into thick wedges
• 1 large sweet potato (10 ounces), peeled and cut into thick wedges
• 2 medium turnips (8 ounces total), peeled and cut into thick wedges