What You Need to Know
The technique involves slowly pouring melted butter into a mixture of egg yolks and lemon juice while whisking, creating a stable emulsion through the formation of a complex network of lipids and proteins. The key variables are temperature, pH, and the ratio of butter to egg yolks.
This technique is unique to Piemontese cuisine, where it is used to create a variety of sauces and condiments, such as hollandaise and salsa verde.
Key Parameters
Temperature
70°C
50°C - 85°C
Time
10 minutes
5 minutes - 15 minutes
Equipment
Steps
- 1.
Bagna Càuda (Piedmont, Italy): Base for the warm dipping sauce
- 2.
Vitello Tonnato (Lombardy, Italy): Creates the tuna-mayonnaise emulsion
- 3.
Fonduta Valdostana (Aosta Valley, Italy): Emulsifies fontina cheese sauce
The Science
Primary Reaction
emulsification