Split English muffins and toast on the hard outsides, cover soft, untoasted insides with Swiss cheese, spread lightly with mustard, top that with a wheel of Bermuda onion and 1 or 2 slices of Italian-type tomato. Season with cayenne and salt, dot with butter, cover with Brazil nuts and brown under the broiler.
J Jurassiennes, or Croûtes Comtoises
Soak slices of stale buns in milk, cover with a mixture of onion browned in chopped lean bacon and mixed with grated Gruyère. Simmer until cheese melts, and serve.
K Kümmelkäse
If you like caraway flavor this is your sandwich: On well-buttered but lightly mustarded rye, lay a thickish slab of Milwaukee Kümmelkäse, which translates caraway cheese. For good measure sprinkle caraway seeds on top, or serve them in a saucer on the side. Then dash on a splash of kümmel, the caraway liqueur that's best when imported.
L Limburger Onion or Limburger Catsup
Marinate slices of Bermuda onion in a peppery French dressing for ½ hour. Then butter slices of rye, spread well with soft Limburger, top with onion and you will have something super-duper—if you like Limburger.
When catsup is substituted for marinated onion the sandwich has quite another character and flavor, so true Limburger addicts make one of each and take alternate bites for the thrill of contrast.
M Meringue, Open-faced (from the Browns' 10,000 Snacks)