Hooray for cheezy comfort food! The key to this recipe is to slice waxy potatoes ethereally thin (no more than 1/8", ideally more like 1/16"). I accomplished this with the slicing side of my grater. I tried using the food processor, but it didn't slice them thin enough. Even if you can't get them that thin, it will still taste good, but the texture won't be as nice. Preheat the oven to 350°. Grease an 7"x11" baking dish. 1 quart very thinly sliced peeled, waxy potatoes (such as red potatoes or Yukon gold) 1 can Cream of Onion Soup 1.5 c. milk 3/4 c. grated Swiss cheese 3/4 c. grated cheddar cheese (mix cheeses together to form 1.5 c) 2 Tbsp. butter 3 Tbsp. flour 1 tsp. ground mustard 1 tsp. paprika 1 tsp. black pepper 1 tsp. seasoned salt 1/2 tsp. garlic powder 1/4 tsp. cayenne Make a roux: heat the butter in a small pan until it starts to shimmer, then add the flour. It will bubble up; stir frequently until it is a slightly browned pa
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