Crispy rye bread, tender corned beef, melty Irish cheddar, sharp mustard and a cabbage slaw come together to make the ultimate sandwich for St. Patrick's day! Ingredients (US & METRIC): (Makes 4 sandwiches) For the sandwiches: 8 slices best quality rye bread 50g / ½ stick butter, softened 4tbsp strong Irish Mustard 500g/1½ pounds cooked corned beef, thinly sliced 200g/ 1 cup Irish mature Cheddar, grated For the slaw: 1/4 head of pointy cabbage, finely sliced 1 large carrot, julienne peeled 1 tsp