Cheesiest Potatoes Au Gratin
["2 tsp. butter or margarine", "1 tsp. minced garlic", "8 c. (3 lb.) peeled, shredded baking potatoes", "1 Tbsp. fresh lemon juice", "1 tsp. salt", "1/2 tsp. freshly ground pepper", "1 c. (4 oz.) grated Gruyere cheese", "1/2 c. (2 oz.) grated Parmesan cheese", "1 c. heavy or whipping cream"]
["Heat oven to 400\u00b0.", "Melt butter or margarine in shallow 2-quart baking dish.", "Add minced garlic. Brush to coat bottom and sides of dish."]
["butter", "garlic", "potatoes", "lemon juice", "salt", "freshly ground pepper", "Gruyere cheese", "Parmesan cheese", "heavy"]