Hot Pastrami Sliders

Ingredients (9)

• 1 large sweet onion
• 4 Tbsp butter
• 2 Tbsp brown sugar
• 1 tsp salt
• 9-12 pretzel rolls
• 7 oz. Dubliner cheese
• 9 large slices of pastrami or corned beef
• 1 cup sauerkraut
• 1 tsp oregano