Description
A creamy and cheesy Yukon Gold potato gratin, perfect for any occasion.
Ingredients
Scale
- 1 pound yukon gold potatoes (thinly sliced ⅛ inch)
- 3 Tablespoons unsalted butter (or olive oil; additional for pan)
- ½ cup yellow onion (finely diced)
- 4 cloves garlic (minced)
- 2 Tablespoons all-purpose flour
- ½ cup vegetable stock
- 1 cup whole milk (room temperature)
- ½ teaspoon kosher salt (or to taste)
- ¼ teaspoon white pepper
- ¼ teaspoon freshly ground black pepper (optional)
- 2 teaspoons fresh thyme (chopped, and divided)
- 1 ¼ cups gruyere cheese (freshly shredded)
- ½ cup parmesan cheese (freshly shredded)
Instructions
- Preheat oven to 400°F. Lightly grease an 8×8 or 9×9 baking dish with butter. Thinly slice the potatoes using a mandoline.
- In a large stockpot or sautee pan, melt butter. Add onion and saute for 2-3 minutes, adding a pinch of salt to begin layering in the flavor.
- Add garlic and continue to saute for 1-2 minutes. Then stir in the flour and continue to stir for 1-2 minutes to ensure the flour does not burn.
- Whisk in the vegetable broth until combined, then whisk in milk. Add any remaining salt as needed, white pepper, and thyme. Bring cream sauce to a simmer and continue to lightly simmer for 4-5 minutes, being careful it doesn’t boil. Remove from heat.
- Layer half of the potato slices at the bottom of the greased baking dish for the first layer.
- Pour over half of the cream sauce on top. Sprinkle ¾ cup of the shredded gruyere and the parmesan on top of the first layer of cream.
- Layer the rest of the potato slices in the pan and pour the remaining cream sauce on top. Sprinkle the remaining ½ cup of gruyere on top of the finished dish.
- Cover the baking dish with foil and bake for 25-30 minutes. Uncover and continue cooking for 20-25 minutes, until cheese begins to turn golden brown and potatoes are tender when pierced with a fork. The sauce should also be bubbly.
- Let cool slightly for about 10-15 minutes. Garnish with additional thyme as desired. Serve and enjoy!
Notes
- For a richer flavor, you can use olive oil in place of butter.
- This dish pairs well with a simple green salad.
- Prep Time: 20 minutes
- Cook Time: 55 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cup
- Calories: 350
- Sugar: 2g
- Sodium: 600mg
- Fat: 20g
- Saturated Fat: 10g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 3g
- Protein: 8g
- Cholesterol: 40mg