Ingredients

• ¹/₃ cup dark roast coffee beans
  
• ¹/₄ cup black peppercorn
  
• 4 tablespoons sea salt, plus more for serving
  
• 4 tablespoons hickory smoked sea salt
  
• 2 tablespoons smoked Spanish paprika
  
• Olive oil
  
• 5 pounds bone-in beef ribs (approximately 4 racks)
  
• Dijon mustard, for serving (optional)