INGREDIENTS
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2 1/2 pounds Yukon Gold potatoes, peeled and cut into 1/4-inch thick slices
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salt
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2 tablespoons butter
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2 shallots, thinly sliced
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1 clove garlic, minced
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1/4 teaspoon red pepper flakes
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1 cup heavy cream
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2 1/2 cups shredded sharp cheddar cheese
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1/4 cup mayonnaise
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1 (4-ounce) jar sliced pimentos, drained
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freshly ground black pepper