<<Disclaimer: Verify this information before applying it to your situation.>> Dear Lynn, This is the mayonnaise that I make for my celiac husband, and now the whole family uses it: 1 egg 1 tsp. salt 1 clove garlic, chopped fine 3 tsp. apple cider vinegar 1 cup of corn oil Put the first four ingredients in a blender and whiz. Then with blender still going, slowly pour in the cup of oil. Refrigerate. If you're not into garlic you can try other spices to change the flavor. Every once in a while the process goes awry and it doesn't thicken up like real mayonnaise. I haven't figured out why, but I think it has to do with pouring the oil in all at once, so I pour it in slowly and usually it turns out great. Good Luck! Cyndee Burgess Reserve, New Mexico