Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      teaspoon      kosher salt
   1      teaspoon      ground hot red chile pepper
   1      teaspoon      whole black mustard seeds
   1      teaspoon      black peppercorns
   3      whole         juniper berries
   1      tablespoon    peanut oil
   1      tablespoon    apple cider vinegar
   1      tablespoon    brown sugar
   1      large         clove garlic, minced

Preparation:

Pound everything in a mortar (or pulse in a food processor) until it's a thick paste. If necessary, add a little hot water to thin to the consistency of bottled grainy mustard. Work the result evenly into the meat and let sit 1/2 hour or so before cooking. Recipe makes enough for 3 racks of baby backs