sweet & white potatoes au gratin

★★★★★ 1 Review
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By Kathleen Bunting
from Swanton, VT

Made with both sweet and white potatoes,this dish is a blend of color,taste,and texture. It's creamy,but not too heavy,and sweeter and less starchy than it would be with all white potatoes. I'm an ole gal ; ) ~~ so I use a food processor to slice my potatoes to be thinly sliced. And if I use the Red potato in place of the White. I wash em up and leave skins on and then slice thinly.

★★★★★ 1 Review
serves 8
prep time 25 Min
cook time 45 Min

Ingredients For sweet & white potatoes au gratin

  • 1 lb
    sweet potatoes,washed thinly sliced
  • 1 lb
    white potatoes,washed thinly sliced
  • 1 Tbsp
    olive oil
  • 1 c
    red onion,thinly sliced
  • 2 clove
    garlic,minced
  • 1/2 c
    red bell peppers,thinly sliced
  • 1 Tbsp
    fresh thyme leaves
  • 1 Tbsp
    all-purpose flour
  • 1/2 c
    whole milk or (your choice of the milk your family is drinking)
  • 2 lg
    eggs
  • 1 c
    yogurt, low-fat, plain (again your choice of the plain yogurt your family is eating)
  • 1/4 tsp
    salt
  • 1/2 tsp
    black pepper
  • 1/2 c
    parmesan cheese,shredded,(divided)
  • 1/2 c
    sharp cheddar cheese,shredded,(divided)
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How To Make sweet & white potatoes au gratin

  • 1
    Wash and thinly slice potatoes. In a microwave-safe dish (not plastic),sprinkle potato slices with 1/4 cup water,cover with lid or waxed paper,and microwave on high for 3 to 4 minutes.
  • 2
    Remove cover from bowl and allow potatoes to cool.
  • 3
    In a saute' pan,heat olive oil over medium-high heat and add onions,garlic,red pepper. cook until slightly brown,about 5 minutes. Add thyme and flour,then whisk in milk. The flour will cause mixture to thicken. Remove from heat and allow to cool.
  • 4
    In a 9"X13" baking dish,layer the potato slices like roof shingles until the pan is filled.
  • 5
    Gently fold eggs,yogurt,salt,pepper,1/4 cup of the Parmesan cheese,and 1/4 cup Sharp Cheddar cheese into the now cooled onion mixture,combining well,and then pour over layered potatoes.
  • 6
    Top with remaining 1/4 cup Parmesan cheese and 1/4 cup Sharp Cheddar cheese.
  • 7
    Bake in preheated 375F. oven for 45 minutes.

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