Potato Gratin with Apple and Fennel
SERVINGS: 8-10 servings
PREP TIME: 20 minutes
TOTAL TIME: 2 hour 30 minutes
COURSE: Side


Here, classic potatoes au gratin get a delicious twist with the addition of tart Granny Smith apples and fragrant fennel. A duo of Parmesan and Gruyère cheeses bring rich, nutty luxury, while fresh thyme infuses the dish with a lovely herbal flavor. It’s indulgent, impressive, and incredibly delicious — make sure to save room for it at your table.
Ingredients
- 1 Tbsp. of butter, for greasing the baking dish
- 3 Tbsp. extra-virgin olive oil
- 2 medium fennel bulbs, washed, quartered, and thinly sliced
- 1 large white onion, thinly sliced
- 2 Granny Smith apples, peeled, cored and cut into ½-dice.
- 2.5 cups heavy cream
- 1 tsp. chopped garlic
- 12-15 sprigs of fresh thyme, leaves only; stem removed
- 2 lbs. Yukon Gold or Russet potatoes (4-5 large)
- Salt and pepper, to taste
- 2 cups of grated Gruyère (about 8 oz.)
- 1/2 cup of grated Parmesan, plus 3 Tbsp.
- 1 Granny Smith apple peeled, cored, and sliced ¼-thick- (optional garnish)
Instructions
- Preheat oven to 350°F. Butter a 9x13-inch casserole dish.
- In a large sauté pan, heat the olive oil over medium. Add the fennel and onion and gently cook 10-12 minutes. Add the diced apples and continue to cook until lightly browned. Remove from the heat and cool.
- Place the heavy cream in a saucepan with the garlic and thyme. Simmer on low 15-20 minutes until slightly reduced.
- Peel the potatoes, then thinly slice them approximately ¼-inch thick, by hand or with a mandolin, and place in a large mixing bowl.
- Add the fennel apple and onion mix, then pour in the prepared cream, reserving ½ cup. Add salt, pepper, Gruyère, and 3 tablespoons of the Parmesan. Mix well.
- Pour the mixture into the baking dish and press down. If garnishing with the apple slices, arrange on top of the potato mix. Sprinkle the ½ cup of Parmesan on top and spoon the remaining ½ cup of cream, covering the surface.
- Bake for 1.5-2 hrs. or until the potatoes are tender and the surface is golden-brown.
Begin Each Recipe with the Finest Seafood
Citarella owner, Joe Gurrera has 7 rules when it comes to cooking seafood. The first rule is to begin with the freshest, highest quality ingredients. And at Citarella, we have been bringing in the best for over a century. Whether it’s right out of the Atlantic, fresh from the Pacific, or sourced from one of the world’s most principled seafood farms, if it’s sold at Citarella, it’s the finest seafood available on the market today. Period.



