INGREDIENTS
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about 1 pound potatoes (I used red, though yukon gold is really nice too… use what you have)
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about 1 pound leeks
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2 tablespoons olive oil (or butter if you prefer)
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1/2 cup whole milk (or cream for added richness)
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1 cup Swiss cheese, shredded (you can use Gruyere also, I used baby Swiss)
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1/4 cup parmesan, grated (I used asiago instead because that’s what I had. But either will work).
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salt and pepper, to taste.
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(optional) 1/4 cup panko breadcrumbs