The CC loves savory cocktails particularly when they involve tomatoes.
The first time the CC had this particular beer cocktail at a Mexican restaurant, he knew he was tasting something other than the salt on the rim. The liquid had an intense umami flavor which was from something other than the tomatoes.
The answer which the CC observed by watching the bartender is sure to shock the "gourmandistas". He was using Maggi seasoning which has an intense umami flavor. The alternative from reading recipes online is Worcestershire sauce which has a similar umami flavor. Vegetable bouillon cubes, crushed and dissolved in hot water would work too.
The umami synergy is created by the salt, the tomatoes and the seasoning which are amplifying the taste beyond the sum of its parts.
(makes one cocktail - scale as necessary)
2 tbsp. tomato purée
1 tsp hot sauce (Tapatío works great)
dash of Maggi seasoning
fine sea salt
finely ground chili powder
1 lime (for the glass rims)
Squeeze the lime into a flat bowl. This is to rim the glasses with the salt and chilli seasoning.
In a separate flat bowl or plate, mix the fine sea salt and chili powder and set aside.
First, dip the glass rim into the lime above. Then rotate it in the second mixture till the rim is coated.
Add the tomato purée, juice of 1 line, hot sauce, and seasoning into the glass. Top with the lager and stir briefly.