Has anyone had the awesome aioli that is served with various Costco sandwiches? I absolutely love it and have wondered if the recipe is available to the public. I kind of figured that it wasn't, but there are some knockoff versions that seem pretty close to what I taste in the concoction. I was definitely tasting mayo, Dijon mustard, garlic, and olive oil. Here's one of the recipes I came across that seems to confirm my thoughts about the ingredients.
I've posted this recipe previously but, with the holidays approaching, I thought it might be nice to share it again. I've been making this dish for at least 25 years, and it has always been a hit. Prep isn't too difficult or time-consuming as the potatoes are peeled and sliced one day, refrigerated in a bowl of water overnight, then the dish assembled prior to baking. It is a wonderful accompaniment to ham and roast beef.
Potatoes Dauphin
4 large russet potatoes
6-8 cloves garlic, minced
2 cups (about 1/2 pound) shredded Gruyere cheese
Salt and white pepper to taste
1 1/2 cups whipping cream
Peel potatoes. Cut into 1/8-inch-thick slices. Soak in ice water for several hours or overnight. Drain well and pat dry.
Preheat over to 400*.
Place one quarter of the potatoes in a single layer in a 9x13 or 7x12 baking dish. Sprinkle with a quarter of the garlic and a quarter of the cheese. Salt and pepper to taste. Repeat process three times. Pour cream evenly over top.
Cover and bake for 30 minutes. Remove cover and continue to bake until potatoes are tender and top is nicely browned (about 30 minutes). Remove from oven and let stand for 10-15 minutes. Serves 4-6.
Bon Appetit!