Prepared mustard is a mainstay of great barbecuing and grilling. Two main types are called for in this book. By Dijon-style, I mean a smooth, tart, French-style mustard typified by Grey Poupon (this is not a sweet mustard). By grainy, or Meaux-style, I mean a coarsely ground French-style mustard—again without sweetness. Honey mustard is a dulcet American-style mustard sweetened with honey and sometimes thickened with eggs. Ballpark mustard is a traditional sharp American mustard colored with turmeric—think of French’s.