mayonnaise - optional

Mayonnaise is an emulsified condiment made from egg yolks, oil, and an acidic ingredient—typically lemon juice or vinegar. Created in the 18th century and popularized in France (allegedly originating from the port city of Mahón in Menorca, Spain, though the etymology remains debated), mayonnaise represents one of the foundational mother sauces in classical French cuisine. The emulsion is achieved by whisking egg yolks with acid while slowly incorporating oil, allowing the lecithin in the yolks to bind the oil droplets in suspension. The result is a thick, creamy, pale yellow condiment with a rich, savory, slightly tangy flavor profile. Commercial variants may include additional stabilizers, emulsifiers, and adjustments to oil ratios to ensure shelf stability.

Regional variations exist globally: aioli in Mediterranean cuisines (often featuring garlic and traditional olive oil), Japanese kewpie mayo (made with egg yolks only and rice vinegar, yielding a richer texture), and spiced variants in Southeast Asian preparations.

Mayonnaise serves as both a direct condiment and a base for derivative sauces in countless culinary traditions. It is central to sandwich-making across Western cuisines—particularly in American, British, and Northern European food cultures—where it provides moisture and fat to bread-based compositions. Beyond table use, mayonnaise functions as an emulsified foundation for compound sauces: aioli (garlic-infused), remoulade (with pickles and capers), tartar sauce (seafood accompaniment), and spiced variants like sriracha mayo or wasabi mayo. It is essential in bound salads (egg salad, potato salad, coleslaw, tuna salad), bakery applications, and as a cooking medium or enrichment agent in various cuisines. Japanese cuisine employs kewpie mayonnaise in okonomiyaki, takoyaki, and as a condiment for grilled items.