Casserole (Onion Potato Gratin

By Floridaberry

Ingredients

• 1 1/2 pound Yukon Gold potatoes, peeled, cut into 1/4 inch thick slices
• 8 About 8 potatoes
• 3/4 pounds onions, thinly sliced or 1 big onion
• 1 cup (packed) grated (Gruyere cheese (about 4 ounces)
• 8 tablespoons (packed) freshly grated Pdarmesan cheese (about 2 ounces)
• 2/3 cup whipping cream

Preparation

Step 1

Preheat oven to 400 degrees F. (Unless preparing in advace)

1. Combine Yukon Gold potatoes and sliced onions in heavy large saucepan. Add enough water to cover. Bring water to boil. Reduce heat and simmer until potatoes are almost tender, about 3 minutes. Drain potato onion mixture well.

Spray dish with pam

2. Arrange half of potato-onion mixture in 11 x 7 inch glass baking dish. Sprinkle with salt and pepper. Sprinkle mixture with 1/3 cup Gruyere cheese and then 2 tablespoons of Parmesan cheese.

3. Arrange remaining potato-onion mixture atop cheeses. Pour cream over. Sprinkle with salt and pepper. Sprinkle the remaining 2/3 cup of Gruyere and 6 Tablespoons of Parmesan cheese. (Can be prepared 8 hours in advance. Cover and refrigerate.)

4. Bake gratin uncovered in 400 degree F. oven until cream thickens, about 25 minutes. Remove from oven. Preheat broiler. Broil gratin until top is golden, about 2 minutes.