1/2 teaspoon Tabasco (or a similar hot pepper sauce)
1/2 teaspoon each Worcestershire sauce and liquid aminos (or soy sauce or Maggi sauce)
2 tablespoons lime juice
Equal parts salt and chili powder mixed, for rimming the glass
Instructions
Rub the lip of a pint glass with lime and then dip into the salt/chili powder mixture.
Put your flavorings in the glass and stir up.
Add ice if you like that (I do) and then slowly pour in the beer. It will foam up a LOT so have patience, young drunk. Pour a little, let it settle, and repeat.
Adjust the seasoning with more lime or Tabasco as you see fit.