Detroit-Style Corned Beef Brisket Sandwich

Name: Detroit-Style Corned Beef Brisket Sandwich
Prep time: 5 min
Cook time: 315 min
Total time: 330 min
Ingredients: 3 lb Corned Beef Brisket; 2 cups Beef broth; 1 - 2 cup(s) water (enough to cover the brisket); 1 Tbsp unsalted butter; 1 Pepperidge Farm Onion Roll (or any kind of bread or bun you choose); mustard (enough to cover each side of the bun); ¼ cup Crockpot Corned Beef Brisket; 1 slice Swiss cheese; 1 - 2 pickle spears (any flavor you choose)