In this classic dish, thinly sliced potatoes are layered with a distinctive Mornay sauce. Mornay sauce is a Béchamel sauce with the addition of Gruyère cheese. The additions of savory leeks, garlic, and rosemary combine in a wonderful way in the sauce to infuse flavor into every bite. This recipe is a warm, comforting side dish, or hearty enough for the main event!

Classic Potato & Leek Gratin
Serves 6 - 8

Ingredients:
2 lbs Idaho potatoes (about 7-8 potatoes), washed, peeled, and thinly sliced with a mandoline
5 tablespoons butter, divided
3 small leeks, green parts removed, finely sliced
1 tablespoon rosemary, minced
4 cloves garlic, minced
1/4 cup all-purpose flour
3 cups whole milk
2 teaspoons kosher salt
1/4 teaspoon black pepper
1-1/2 cup grated Gruyère, plus
2 tablespoons reserved as topping

Directions:
1. Preheat the oven to 400°F.

2. Prep the potatoes. Use a sharp peeler to peel the potatoes. Rinse off, and then slice into 1/8” slices using a handheld mandoline.

3. In a large saucepan, melt 1 tablespoon butter and cook the leeks over medium heat until they are translucent, about 10 minutes. Add the rosemary and garlic and cook for about another 3 minutes.

4. Prepare the roux. In a separate, small saucepan, heat the remaining 4 tablespoons of butter. Once the butter has melted, whisk in the flour until the mixture is completely smooth. Continue cooking for about 1-2 minutes. This process removes the raw flour flavor and helps create a silky sauce.

5. Create a Béchamel sauce by very slowly pouring milk into the roux, continue whisking the mixture until the sauce is smooth. Add in the salt and pepper and continue whisking over medium-low heat for 3-5 minutes until the sauce thickens and becomes very creamy.

6. Transform the sauce into a Mornay sauce by slowly adding in the Gruyère cheese. Continue cooking and whisking for a few more minutes until the sauce is smooth, and the cheese is well incorporated. Add the cooked leeks mixture to the sauce.

7. Layer the gratin. Butter the bottom and sides of a large baking dish and lay a single layer of potatoes. Pour some of the sauce over the potatoes and continue to layer the potatoes, pouring more sauce at each layer. Repeat this step until all of the potatoes are used (or you get to within 1/2” from the top of your dish).

8. Coat the final layer of potatoes with sauce and sprinkle with the reserved cheese.

9. Cover the gratin with a tight fitting lid or foil and bake for 60 minutes. Remove the lid or foil, and continue to bake for another 10 minutes, or until the top turns golden brown.

10. Garnish with additional fresh pieces of rosemary, and serve hot.

This chicken dish features a rich pan sauce, loads of slowly caramelized onions, and bubbly, broiled cheeses on top - oh my! Even better, this savory dish is prepared in one large skillet. This French Onion Chicken Skillet Dinner is likely to become a new family favorite.

French Onion Chicken Skillet Dinner
Serves 4 - 6

Ingredients:
4 tablespoons butter
2 large sweet onions, cut pole-to- pole, Lyonnaise style strips
1 teaspoon sugar
2 cloves garlic
6 thin cut skinless, boneless chicken breasts
For dusting chicken: 1/4 cup flour, 1/2 teaspoon Kosher salt, 1/4 teaspoon pepper, 1 teaspoon fresh thyme leaves, 1/4 teaspoon paprika
2 tablespoons flour, for thickening the sauce
1/4 cup white wine
1 cup beef broth
6 sprigs fresh thyme
Kosher salt
Freshly ground pepper
1 teaspoon Worcestershire sauce
8 oz Gruyère or Swiss cheese, shredded
4 oz Parmesan cheese, shredded

Directions:
1. Using a large oven-proof skillet or braiser melt the butter.

2. Add the sliced onions and cook over medium-high heat. Stir the onions every few minutes, then turn down the heat. Continue to cook the onions until they begin to turn a nice brown color. Turn the heat lower, as needed, to prevent the onions from burning. Caramelizing onions fully takes time! A true caramelized onion takes about an hour, but for this recipe giving the onions 25-30 minutes to reach a tender, caramelized state works well. Sprinkle the onions with 1 teaspoon of sugar to help with the process. To help the onions caramelize slowly, let them sit in a little pile, then stir once or twice about every 5 minutes.

3. Once the onions have caramelized, add the garlic and sauté for another 2 minutes until fragrant.

4. Remove the onions from the pan, and set aside to brown the chicken.

5. Lightly coat the chicken breasts in the flour, salt, pepper, paprika, and thyme mixture until dusted on both sides. Add up to 4 additional tablespoons of butter or olive oil while cooking the chicken to prevent sticking.

6. Brown the chicken on both sides and cook until about 150 degrees F, but not all the way done. Remove the chicken from the pan.

7. Add the onions back to the pan, and then sprinkle with 2 tablespoons of flour. Stir until coated. Add the wine, and reduce down. Add the beef broth and Worcestershire sauce, and stir until a sauce is formed. Once the sauce has thickened slightly, add the chicken breasts back in.

8. Turn the oven to broil. Sprinkle the chicken breasts with the Gruyère and Parmesan cheese and then broil until bubbling and golden brown and the chicken reaches 165 degrees F.

9. Garnish with fresh thyme leaves.

10. Serve with a side of kale Caesar salad, a side of roasted vegetable, mashed or baked potatoes, egg noodles, pasta, or cauliflower rice.