mayonnaise

Mayonnaise is an emulsified condiment originating from 18th-century France, traditionally attributed to the port city of Mahón in Menorca, Spain, though its French development became definitive. It is created through the mechanical emulsification of egg yolks with oil, stabilized by lecithin naturally present in the yolk, with the addition of an acid (typically vinegar or lemon juice) and seasonings. The result is a thick, creamy, pale yellow suspension with a rich, slightly tangy flavor profile. Commercial mayonnaise typically contains egg yolk, vegetable oil (soybean, canola, or sunflower), vinegar, water, salt, and emulsifiers or thickening agents. Homemade versions vary in oil ratios and acid choices, affecting texture and taste.

The emulsification process is critical—oil is whisked gradually into egg yolk with acid and seasoning, creating a stable colloidal suspension where microscopic oil droplets are suspended within the water phase of the egg. Temperature and ingredient ratios are essential; adding oil too quickly or using cold ingredients can cause the emulsion to break, resulting in a separated, grainy texture.

Mayonnaise functions as both a base ingredient and finishing condiment across numerous cuisines. It is essential in sandwich construction—particularly in American, British, and European traditions—where it serves as moisture, binding agent, and flavor component. The condiment is a foundational element in salad dressings (e.g., composed into aioli, remoulade, or Thousand Island dressing), appears as an accompaniment to fried foods in Northern Europe and Scandinavia, and serves as a binding agent in salads (potato salad, egg salad, tuna salad, coleslaw). In Japanese cuisine, mayonnaise features prominently in okonomiyaki and takoyaki. It pairs effectively with seafood, poultry, and vegetables, and its richness complements acidic or spiced elements. Home cooks and chefs alike use it as a base for flavored mayonnaise through incorporation of herbs, spices, garlic, or other condiments.