Sir Kensington's Vegan Mayo is a delicious egg-free mayonnaise alternative made with 100% sunflower oil and a little help from the mighty chickpea. Most vegan mayos are made with processed starches and pea or soy powders. But not Sir Kensington's. What's their secret to a vegan mayo that tastes like the real thing? Aquafaba, the natural egg substitute made simply from chickpeas and water.