Soda Chanh Muối & Trứng Sữa
Soda Chanh Muối & Soda Sữa Hột Gà·(so-dah chan mwuy and so-dah swuh hot gah)
Khi Ốm Đau: Maternal Comfort and Sick-Day Foods
In the Vietnamese ethnomedical tradition, the line between the medicine cabinet and the pantry doesn't exist. For a first-generation kid growing up in the American Midwest, a sick day meant your mother reaching for one of two iconic elixirs. If you battled a sore throat, you got the cooling, electrolyte-packed magic of Soda Chanh Muối, poured from a jar of salted Meyer lemons fermenting in the window. If you needed pure caloric warmth, she whipped up Soda Sữa Hột Gà—a rich, custardy emulsion of egg yolk and condensed milk. They are the yin and yang of maternal comfort, relying on foundational techniques to deliver the exact taste of the motherland using standard supermarket staples.
Before you start
Make the preserved lemons a month ahead.
The Chanh Muối requires four weeks of fermentation before it can be used, but once mature, the jar will last at room temperature for years.
Ingredients
- Meyer lemons1 1/2 lb
- coarse kosher salt1/2 cup
- water3 cup
- white vinegar1 tsp
- sugar3 tbsp
- large egg yolk1 large
- sweetened condensed milk3 tbsp
- fresh lime juice1 tsp
- club soda2 cup
- ice cubes2 cup
Method
- 01
Extract the bitter oils from the lemon skins.
Place the Meyer lemons in a bowl and sprinkle generously with coarse salt. Vigorously rub each lemon against the salt for a few minutes to rupture the oil glands and extract bitter compounds, then rinse thoroughly in cold water.
- 02
Blanch and dry the lemons.
Boil the water with the vinegar. Drop the lemons in for exactly one to two minutes, plunge them into an ice bath, then dry them thoroughly. Leave them by a sunny window for a full day until the skins feel dry and slightly wrinkled to prevent molding.
- 03
Ferment the lemons in a salt brine.
Boil 3 cups of water with a half cup of coarse salt until dissolved, then let it cool completely. Pack the dried lemons tightly into a sterilized glass jar, pour the cooled brine over them to submerge entirely, and let sit in a pantry for at least four weeks.
- 04
Assemble the Soda Chanh Muối.
When a sore throat strikes, aggressively muddle a quarter of a preserved lemon, a teaspoon of its brine, and the sugar in a sturdy glass until it forms a syrup. Top with ice and a cup of club soda, stirring well.
- 05
Emulsify the yolk for the Soda Sữa Hột Gà.
For the egg soda, combine the egg yolk and sweetened condensed milk in a tall glass. Vigorously whisk or froth for two minutes until the mixture is pale, thick, and fluffy. This mechanical aeration completely eliminates the raw egg smell.
- 06
Acidify and carbonate the egg soda.
Stir in the fresh lime juice to cut the richness, then slowly pour in a cup of chilled club soda. The carbonation will react with the egg proteins to create a rich, custardy foam. Drink immediately.
Notes
The science of the egg emulsion.
Vigorous mechanical whisking denatures the egg proteins and eliminates the fishy odor associated with raw yolks. The slight acidity of the carbonated water further thickens the mixture into a safe, luxurious custard.