Babish Mayonnaise is a homemade version of the classic condiment, featured by chef Andrew Rea from the "Binging with Babish" series. Made from scratch using simple ingredients like egg yolks, oil, mustard, and lemon juice, this mayo is rich, creamy, and customizable to taste. It's celebrated for its smooth texture and fresh flavor, often used in sandwiches, salads, and a variety of dishes as a versatile, go-to condiment.