Cheesy Potato, Leek and Mushroom Gratin

• 1/4 cup butter 1/2 stick, or half olive oil and half butter
• 1 pound mushrooms white or cremini, sliced
• 1 tablespoon garlic minced
• 4 cups leeks thinly sliced (white and pale green parts only)
• 1 tablespoon thyme freshly minced
• 1 3/4 cups chicken broth, low salt canned
• 1 3/4 cups cream whipping
• 1/4 cup white wine dry
• 1 teaspoon salt
• 1/2 teaspoon black pepper ground
• 3 3/4 pounds russet potatoes peeled, thinly sliced into rounds
• 2 1/2 cups gruyere cheese grate, about 10 ounces

1. Melt 2 tablespoons butter (or 1 tablespoon olive oil, 1 tablespoon butter) in heavy large skillet over medium-high heat.
2. Stir in mushrooms and saute until almost tender, 4 to 6 minutes.
3. Stir in garlic and saute until mushrooms are tender and golden, about 3 minutes longer.
4. Transfer mushroom mixture to bowl.
5. Melt remaining 2 tablespoons butter (or half olive oil, half butter) in same skillet over medium-high heat.
6. Stir in leeks and thyme and saute until leeks are tender and beginning to brown, 7 to 9 minutes.
7. Add leek mixture to bowl with mushrooms.
8. (Can be made 1 day ahead.
9. Cover and refrigerate.)
10. Preheat oven to 400F.
11. Butter 13 x 9 x 2-inch baking dish.
12. Combine broth, cream, wine, 1 teaspoon salt and 1/2 teaspoon pepper in large bowl, whisk to blend.
13. Layer 13 of potatoes on bottom of prepared dish.
14. Top with half of mushroom-leek mixture, then 3/4 cup cheese.
15. Top with half of remaining potatoes.
16. Pour half of cream mixture over.
17. Top with remaining mushroom-leek mixture and 3/4 cup cheese.
18. Cover with remaining potatoes.
19. Pour remaining cream mixture over, sprinkle with remaining cheese.
20. Bake gratin uncovered until potatoes are tender and sauce bubbles thickly, about 1 hour 20 minutes.
21. Let gratin stand 30 minutes before serving.

butter, mushrooms, garlic, leeks, thyme, chicken broth, cream whipping, white wine, salt, black pepper, russet potatoes, gruyere cheese grate

Taken from recipeland.com/recipe/v/cheesy-potato-leek-mushroom-gra-51321 (may not work)