Fennel Gratin with Walnut-Thyme Breadcrumbs recipe for managing PCOS and pregnancy on Fertility Chef

Ingredients

• 2 pounds fennel bulbs (about 4 small), thinly sliced lengthwise
• 1 small onion, thinly sliced
• 1 cup heavy cream
• 4 tablespoons unsalted butter, cut into small pieces
• 2 tablespoons thyme leaves, divided
• Kosher salt, freshly ground pepper
• 1 1/2 cups very coarse fresh breadcrumbs
• 1 cup walnuts, coarsely chopped
• 2 tablespoons olive oil
• 1 ounce finely grated Parmesan (about 1 cup)