Whisk all ingredients together until emulsified. I like to add them to a tall container and shake.
Pat peeled medium-boiled eggs dry then submerge completely in the marinade.
Cover and refrigerate overnight (8–12 hours).
Slice eggs before serving; drizzle a little marinade over the top for shine and flavor.
These will last for 3-5 days in an airtight container in the fridge if they are medium-boiled eggs.
Hard-boiled eggs can last 5 – 7 eggs since the yolk will not spoil as quickly.