Pretzel Bread Rolls with Pastrami and Provolone

Ingredients

• 4 1/2 cups all purpose flour
• 1 3/4 cups water (at 120° - 130°)
• 3/4 teaspoon salt
• 1 package instant yeast
• 1 pinch coarse sea salt (for sprinkling on top of rolls)
• 2 quarts water
• 1 Tablespoon salt
• 1/4 cup baking soda
• 22 oz sliced pastrami
• 8 oz beer
• 5 Tablespoons whole grain mustard (for pastrami sauce)
• 1 onion (sliced into rings)
• 3 Tablespoons vegetable oil
• 8 Tablespoons whole grain mustard (for slathering on the rolls)
• 8 Tablespoons mayonnaise