potatoes dauphinoise

Ingredients For potatoes dauphinoise

• 2 c

  swiss cheese, shredded
• 1 1/2 c

  parmesan cheese, grated
• 2 Tbsp

  margarine or butter
• 3/4 c

  chopped onion
• 1

  sweet potato, peeled and thinly sliced
• 1

  russet or yukon gold potato, peeled and thinly sliced
• 2 md

  sized red skinned potatoes, brushed clean and thinly sliced
• 2 c

  half and half
• 4

  egg yolks
• 2

  whole eggs
• 1/2 tsp

  salt
• 1/8 tsp

  white pepper
• 1/8 tsp

  nutmeg