Smoked Pastrami Steak from Epic BBQ Sandwiches: Next-Level Burgers, Melts, Sliders, Tacos, and More, Grilled or Smoked to Perfection by Brad Prose

Ingredients

• 3 tablespoons Pastrami Spice Rub (recipe below), plus more as needed
• 3 tablespoons (15 g) black peppercorns
• 2 tablespoons (10 g) coriander seeds
• ½ teaspoon fennel seeds
• 1 tablespoon (15 g) brown sugar
• 1 teaspoon paprika
• 1 teaspoon granulated garlic
• ½ teaspoon chili flakes
• ½ cup (115 g) Fresh Mayonnaise
• 2 tablespoons (22 g) Dijon mustard
• Juice of ½ lemon
• 2 tablespoons (30 ml) prepared horseradish
• Salt to taste
• Softened butter, for toasting
• 8 slices bread (see bread recommendations)
• Horseradish Slaw or sauerkraut
• 4 slices Gouda cheese
• Jewish rye bread
• Caraway rye bread
• Thin-sliced sourdough
• French baguette