Homemade Mayonnaise

What to do when the world has handed you eggs, and you’re running out of space to store them?  Make homemade mayonnaise!

More specifically, my wife has decided that she needs to take firmer control of her meals for the week, which necessarily means that the kids and I will also be taken under her wing. While working up lunches, making large batches of egg and tuna salad, she noted that we were running low on mayo… And we’ve got something like ten dozen eggs in the fridge. Well, eggs being one of the main mayonnaise ingredients, we decided that it would be most cost-effective to make our own.

Now, we’ve made mayonnaise before. Back before we moved out to the homestead, in the heady days when Alton Brown had his show on regularly, we tried out his recipe with some success. But that was years ago, and I at first figured I’d try something different. Enter: the venerable Fanny Farmer Cookbook.

I’m not sure what happened. We followed the instructions precisely. Maybe we added the oil too quickly? Maybe there wasn’t enough mustard?  Regardless, it never set up. It remained a liquidy, mayonnaise-flavored soup. We tried the “repairs” that they suggested: adding another egg yolk. More oil. More mustard. Nope.

What eventually worked was starting smaller. We poured everything into a different container, and started over with a single egg yolk, a dollop of mustard, and a splash of vinegar. We got that spun up, then really slowly started adding the previous batch in. At first, literally drop. By. Drop. Then, slowly increasing the speed, but never as fast as the first attempt. I knew things were going well when I started seeing blobs of (recognizably) mayonnaise getting flung into and about the sides of the food processor. After a few short moments, it was done.

The taste was, at first, underwhelming… But after a short while in the fridge, it all came together nicely! Unfortunately, my wife was still making things…

One third of the batch of mayonnaise
I almost couldn’t get to it fast enough for a picture.

Here’s the recipe I used:

Blender Mayonnaise

1 whole egg (room temperature)
1/4 tsp salt
1/2 tsp dry mustard, or 1 tsp Dijon
1 cup oil (olive, peanut, vegetable, whatever)
1-1/2 Tbsp cider vinegar or lemon juice
1 Tbsp boiling water
additional salt to taste

Place the egg, salt, mustard, and 1/4 cup of the oil in the blender. Turn on the blender, and add the remaining oil slowly, in a thin stream (almost drop-by-drop). Add the vinegar or lemon juice and the water. Taste, add salt if desired, and refrigerate.

Rebuilding a March Pump

Here’s a quick, down-and-dirty on how to rebuild a March Pump with a new head. (This was originally posted in October, 2008, and has been cleaned up a little for its migration to my new web host in 2018.)

As you may recall, I dropped mine, and broke off the intake side of the head:
March pump with broken head assemblyI ordered a new one from MoreBeer, and it arrived shortly, in good order (but for the shipping box…):Replacement polysulfone pump headTo install the new pump head, first you have to take off the old one. This is accomplished by removing four screws, located on the ‘face’ of the head. (Sorry for the blurry picture; the arrows indicate the individual screws’ locations.)Pump screw locationsHaving pulled the head off, you’re faced with another quartet of screws on the inner workings of the head:Inner pump headWith these removed, you can pull things apart. You’re now faced with the impeller assembly:
Pump head dismantledA bit of tugging, and the whole thing will come apart nicely, including the impeller (the spinny bit) and its axle:Pump impeller and axle
A quick inspection revealed a problem for me, however: mold had taken up residence on the impeller!Dirty pump impeller
So, after much washing and scrubbing and sanitizing of the impeller, I was ready to re-assemble. The re-assembly process is identical to the disassembly process, only in reverse. In all, not counting the ‘break’ to clean things, it probably took me about 10 minutes to have the old one off and the new one screwed on.Rebuilt pump head, good as new
Note to self: Run sanitizing solution through the stupid thing during post-brew cleanup, otherwise I’ll be left with the possibility of infected batches…

In 2018, this pump is no longer actively in service–the latest iteration of the brew rig is a simple two-tier, and its placement next to my back stoop allows me to do the “heavy lifting” myself. I’m hoping, before long, to go to a single-tier electric system, eventually, and a pump or two will once again become necessary; I’m thinking going with stainless heads, when the time comes.

But, as you can see, replacing the “working parts” of a March pump isn’t so big a deal, at all.