All you need is a good blender, veggie oil (use Canola...NEVER use Olive Oil!), apple cider vinegar, 1 egg, salt, powdered mustard and a clean jar.
1/2 t. salt
1/2 t. mustard powder
2 T. apple cider vinegar
1 cup of oil
Put egg, salt, mustard, and vinegar in blender with 1/4 c. of the oil. Blend on low.
Now, here is where you have to be careful. Uncover and pour a slender and steady stream of oil in until the mixture thicken up completely (you won't be able to put in any more oil).
WARNING: if you pour it all in suddenly, you will just have liquid salad dressing. Slow and steady wins the race! :)
When you are finished, the mixture should look something like this...See, you have done it! You've made a tasty mayo that will please your family and your budget!
P.S. (This recipe originally came from "Laurel's Kitchen", by Laurel Robertson)