Add sunflower oil dropwise to the bowl, while continuing to mix with your whisk.
1 cup sunflower oil
Make sure all the oil is incorporated (after approximately ½ cup (120 ml) of oil, you can start pouring with some more flow).
Season with some salt and pepper to taste.
NOTES
1. StorageAlways store the mayonnaise in the refrigerator in an airtight container. This keeps it good for up to 3 days.2. Nutritional valueThe nutritional value shown is per portion of mayonnaise.