1 egg yolk 1/4 teaspoon of salt a squirt of mustard black pepper, oil red wine vinegar 5 cloves of garlic curry powder catsup Tabasco sauce cream
My Swiss neighbor used to make beef fondue a lot and she would make a homemade mayonnaise out of 1 egg yolk, about a 1/4 tsp of salt, a squirt of mustard, sprinkle of black pepper, and mix it in a glass bowl (not plastic) with a whisk until thickened for a couple of minutes, then add a few drops of oil at a time and keep stirring until it thickens each time. When it gets too thick she would thin it with just a little red wine vinegar but not too much as it will break down the mayonnaise. She used about 1 cup of oil and 1 egg for 4 or 5 people.
This mayo can ruin pretty easily but I've seen a recipe in a cookbook for homemade mayo that was quite similar to hers and that might be easier to try something that has a good recipe and ingredient amounts.
Anyway, after she made the mayo, she would take 3 of her fondue sauce bowls and fill them up with the mayo. She would crush about 5 cloves of garlic to go in one bowl, and the second one she would put enough curry powder to season it. In the 3rd bowl she would squirt some catsup and a little bit of Tabasco sauce and a bit of cream and a sprinkle of salt & pepper.