Mashed Potato Gratin

I love this recipe because it uses Swiss cheese instead of the usual Cheddar.

• Ready In: 1 hr 30 mins
• Serves: 8

Ingredients

• 3  lbs russet potatoes, cut into small pieces
• 1⁄4 cup butter or 1⁄4 cup margarine
• 3  egg yolks
• 1  teaspoon salt
• 1  cup milk
• 1 1⁄2 cups  shredded swiss cheese (6 oz.)
•  chopped fresh parsley, if desired

Directions

1. Heat oven to 350. Spray 13x9-inch (3-quart) glass baking dish with cooking spray. In 4-quart saucepan or Dutch oven, place potatoes; add enough water to cover potatoes by 1 inch. Heat to boiling over high heat. Reduce heat to medium-low; simmer uncovered 20 minutes or until potatoes are tender and can be easily pierced with fork.
2. Drain potatoes; return to saucepan. Add butter; mash with potato masher until creamy. Stir in egg yolks, salt, milk and 1 cup of the cheese. Spread potato mixture evenly in baking dish. Sprinkle with remaining 1/2 cup cheese.
3. Bake 30 minutes or until edges are light brown. Sprinkle with chopped parsley.