The key to great mayo is good oil, and to add more oil until it thickens. I make knock off of Kraft with:
1 egg
1 Tbsp. ACV
1 tsp. salt
about 1 1/2 c. canola oil, added slowly. And keep adding until whipped to the desired consistency. The ammount of oil will vary. Sometimes I use less, sometimes more. I just use it until it's good and thick like we like it. If it's runny, it needs more oil. That was my issue when I first started making it. I tried to follow a recipe I found online, and the exact measurements, and it turned out runny so i tossed it. Little did I know if I had added more oil it would have been perfectly fine

I haven't found a recipe yet that will tell ya that little secret though

Experience taught me
I use a stick blender now, but I was using a cheapy hand mixer that was a Walmart special $4 and both done the job. One just takes a little bit nore time is all.

Use what ya got

It'll do fine as long as you add more oil if needed regardless of what the recipe says.
If you're looking for a Miracle Whip type recipe, just add sugar to this one until it tastes right.
$5 mayo...WOW! I'd never pay that much...not even before I started making my own!
ETA: Just in case your DH is like mine...put the homemade in the $5 jar and he'll never know the difference until the label gets funky from washing, and then it's too late...been eating it way too long to fuss at that point

It worked on my two picky folks.
