Reuben Mac N Cheese

1 (250 g) package pumpernickel rounds 1 cup sauerkraut , rinsed and drained 6 ounces pastrami, thinly sliced 1 Horseradish cream cheese: In a bowl, mash cream[...]

salt 1 lb cavatappi pasta , hallow corkscrew shaped pasta or, other short cut 2 slices rye bread 3 tablespoons butter , plus some butter , for buttering toast[...]