Gather your stand mixer. We'll be using the balloon whisk attachment to make this vegan mayonnaise.
Add all your ingredients except the oil to your stand mixer. We'll whisk these to combine on a high setting which will take about a minute if using egg replacer or 5 minutes if using AquaFaba.
Slowly add our oil, you'll want to add this a few tablespoons at a time, ensuring we don't add more until what we've added has combined fully.