Red Seal Cook Practice Exam

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Which ingredient is essential for emulsifying a vinaigrette?

Salt
Vinegar
Mustard
Oils

The correct answer is: Mustard

The essential ingredient for emulsifying a vinaigrette is mustard. Mustard acts as an emulsifier due to its ability to stabilize the mixture of oil and vinegar. When combined, mustard contains compounds that help to bind the oil and vinegar droplets together, creating a stable emulsion. This blending results in a smooth and cohesive vinaigrette rather than a separation of the oil and vinegar phases. While vinegar is crucial for providing acidity and flavor, and oil makes up the bulk of the vinaigrette, it is the mustard that facilitates the emulsification process, ensuring the ingredients are well combined. Salt can enhance flavor but does not play a role in emulsification. Without mustard, the vinaigrette would likely separate over time, losing the desired consistency and stability.