Fennel Gratin with Walnut-Thyme Breadcrumbs

Name: Fennel Gratin with Walnut-Thyme Breadcrumbs
Total time: 55 min
Yield: 6 servings
Ingredients: 2 pounds fennel bulbs; 1 small onion; 1 cup heavy cream; 4 tablespoons unsalted butter; 2 tablespoons thyme leaves; to taste kosher salt and pepper; 1½ cups fresh breadcrumbs; 1 cup walnuts; 2 tablespoons olive oil; 1 ounce Parmesan

A luxurious side dish featuring tender fennel bulbs baked in cream and topped with a crunchy mixture of walnuts, Parmesan, and thyme-scented breadcrumbs. This elegant gratin combines the subtle anise flavor of fennel with rich dairy and nutty elements.

6 servings

55 min

Published October 4, 2025

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Ingredients

•2 pounds fennel bulbs
•1 small onion
•1 cup heavy cream
•4 tablespoons unsalted butter
•2 tablespoons thyme leaves
•to taste kosher salt and pepper
•1½ cups fresh breadcrumbs
•1 cup walnuts
•2 tablespoons olive oil
•1 ounce Parmesan

Cooking Instructions

1.
Place rack in upper third of oven; preheat to 400°F. Place fennel, onion, cream, butter, and 1 Tbsp. thyme in a large bowl. Season with salt and pepper and toss to combine. Transfer to an 8x8" baking dish; bake until fennel is crisp-tender and cream is reduced by half, 30-35 minutes.
35 min
2.
While fennel is baking, combine breadcrumbs, walnuts, and oil in a medium bowl. Season with salt and pepper and toss until bread is evenly saturated and walnuts are coated. Add Parmesan and remaining 1 Tbsp. thyme and toss again to combine.
5 min
3.
Scatter breadcrumb mixture evenly over gratin and bake until breadcrumbs and walnuts are deep golden brown and fennel is tender, 12-15 minutes. Let cool slightly before serving.
15 min