Potato and Leek Gratin
A creamy and decadent gratin featuring thinly sliced potatoes and tender leeks baked in a rich cheese sauce, creating a comforting and flavorful side dish.
🧂 Ingredients
- 800 g Potatoes(peeled and thinly sliced (Yukon Gold or Russet recommended))
- 2 medium Leeks(washed and thinly sliced (white and light green parts only))
- 2 tbsp Butter
- 2 cloves Garlic cloves(minced)
- 2 tbsp All-purpose flour
- 1.5 cups Milk
- 1 cup Irish cheddar cheese(grated)
- to taste Salt
- to taste Black pepper
- for garnish Fresh parsley(chopped (optional))
👨🍳 Instructions
- 1
Preheat oven to 375°F (190°C). Grease a 9x13-inch baking dish.
💡 Tip: Using a mandoline for slicing potatoes ensures even thickness. - 2
In a large skillet, melt 1 tbsp of butter over medium heat. Add the sliced leeks and minced garlic. Sauté until softened, about 5 minutes. Remove from heat and set aside.
- 3
In a medium saucepan, melt the remaining 1 tbsp of butter over medium heat. Stir in the flour and cook for 1-2 minutes, stirring constantly, to form a roux.
- 4
Gradually whisk in the milk until smooth. Bring to a simmer, stirring constantly, until the sauce thickens. Stir in half of the grated Irish cheddar cheese until melted and smooth. Season with salt and pepper to taste.
- 5
Arrange half of the sliced potatoes in an even layer in the prepared baking dish. Spread half of the sautéed leek mixture over the potatoes. Pour half of the cheese sauce over the leeks and potatoes.
- 6
Repeat the layers with the remaining potatoes, leeks, and cheese sauce. Sprinkle the remaining grated cheese over the top.
- 7
Cover the baking dish with aluminum foil and bake for 45 minutes. Remove the foil and bake for another 10-15 minutes, or until the potatoes are tender and the top is golden brown and bubbly.
- 8
Let stand for 5-10 minutes before garnishing with fresh parsley and serving.
💡 Pro Tips
- ✓Ensure potatoes are sliced thinly and evenly for consistent cooking.
- ✓If leeks are gritty, wash them thoroughly after slicing.
- ✓For a richer flavor, use a mix of Irish cheddar and Gruyère cheese.
✨ Twist Ideas
Inspiration for your own version of this recipe
- Add a layer of cooked bacon or ham between the potato layers.
- Infuse the milk with a bay leaf or a sprig of thyme while heating for added aroma.
- Top with breadcrumbs mixed with melted butter before the final baking stage for a crispy topping.