Au Gratin Potatoes

• Vegetarian

• Produce

  • 1 Onion
  • 2 1/2 lbs Red potatoes

• Condiments

  • 1 tsp Mustard, dry

• Baking & Spices

  • 3 tbsp Flour
  • 1 Salt & pepper

• Dairy

  • 3 tbsp Butter
  • 1 cup Cheddar cheese
  • 1/2 cup Gruyere cheese
  • 2 cups Milk

Found on spendwithpennies.com

Description

Ingredients

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• 2.5 lbs red potatoes
• 1 onion
• 3 tablespoons butter
• 3 tablespoons flour
• 1 teaspoon dry mustard
• 2 cups milk
• 1 cup cheddar cheese
• ½ cup gruyere cheese
• salt & pepper to taste

Directions

• Preheat oven to 400 degrees.
• Wash potatoes and slice into ⅛ thin slices. Slice onion as thin as possible.
• Layer potatoes and onions in little stacks. Place stacks upright in a greased casserole dish.
• Melt butter & flour in a sauce pan and cook 2-3 minutes. Add seasonings and milk. Whisk over medium heat until thick and bubbly. Remove from heat and stir in cheeses until melted.
• Spoon cheese sauce over potatoes. Cover with foil (sprayed with cooking spray) and bake 60 minutes. Remove foil and bake an additional 20-30 minutes or until lightly browned and potatoes are cooked.