Scalloped Yukon Gold and Sweet Potatoes

Posted by sbertzrosa on Mar 23, 2009


2 pounds Yukon Gold Potatoes
1 pound red-skinned sweet potatoes (yams)
1 medium onion
3/4c heavy whipping cream
3/4c milk
1/4c butter
3 garlic cloves, minced
2T fresh Italian parsley
1T fresh rosemary
1T fresh sage
1T fresh thyme
2t fine sea salt
1t black pepper, freshly ground
2c Gruyére cheese, coarsely grated


Peel sweet potato. Fill a large bowl with water. Using a mandolin, slice yukon and sweet potatoes to 1/8" and place in water bowl. Using mandolin, slice onion, set aside.

In a medium sauce pan, combine cream, milk, butter, and garlic. Bring to a simmer.

Preheat oven to 400°.

Put all herbs in food processor to chop and combine, set aside.

Mix sea salt and pepper in small bowl, set aside.

Grate cheese, set aside.

Butter a 13"x9"x2" glass baking dish.

Drain potatoes and pat dry. Layer 1/2 the yukon gold potatoes, followed with 1/2 the onion, followed with the sweet potatoes. Sprinkle with 1/2 the salt-pepper mixture, then 1/2 the herb mixture, and 1/2 the cheese. Continue layering with onions, remaining yukon gold, salt-pepper, herb mixture, and cheese.

Stir the cream mixture and pour over the gratin, pressing lightly to submerge potato mixture as much as possible.

Cover gratin tightly with foil. Bake 45-60 minutes. Uncover and bake an additional 25 mintues until top is golden brown. Let stand 10-15 minutes before serving to allow liquid to set up.

1 Comment


just a test image

KimCollier  |  Sun, 2009-11-29 13:22

I made this for Thanksgiving. I love sweet potatoes but my family does not, so I wanted to try something other than the standard yams and marshmallow dish.

Not only is this an easy dish, but my entire family LOVED it! Even my mom who hates sweet potatoes. I didnt have the pan size required, so I split the dish in half and used 2 7X12 inch baking dishes. It cut the cooking time by 30 minutes - which was nice because I was way behind schedule.

I would definitely make this again - before thanksgiving roles around.