Dmnkly, it was your stunning pics that sent me over the edge (you have nooo idea). Yet truly, as you said, it is Louisa's simple statement that has surely warmed the cockles of many a heart. Thanks for the insight Louisa!
On Saturday I attempted
The BLT Mayo Experiment
-----------feel free to skip details section, 'results' are below next red line
On Saturday I attempted the BLT mayo expt. – I used rendered fat from proscuitto (Parma sausage company), olive oil (herein referred to as OO for brevity's sake only; I eschew any connection to RR) and some bacon fat (BF). Prompted by Dmnkly's post I figured the Louisa suggested "Rich, rich, rich" mayo would be something worth repeating again and again. So to keep it somewhat healthy I wanted to see if the taste could be obtained with only a portion of the fat – in this case, proscuitto fat (PF). Therefore I made mayos with different proportions of PF and OO (4/0, 3/1, 2/2, 1/3, 0/4), also one with BF (which was not enough so it was diluted with an equal amt. of OO). All were made with portions from the same 'base' of two (large) farm fresh egg yolks, (red) wine vinegar, Dijon mustard, white pepper and teeniest bit of salt.
Geo, PF and BF are liquid at a warm ambient temperature. The properties of the resultant mayo are interesting – I needed less of the PF than the OO to make the mayo come together (in fact OO version required greater volume of oil). Further, once cooled (a bit), the mayo with greater proportion of PF stayed thick, while the oil based one was runnier. This is hearty news – as it means that one can make a thicker mayo with less fat than oil!
Mayo notes:
mayos tasted plain and with bread
Do
not make mayo with proscuitto fat. Bacon fat good, proscuitto fat no good. The PF smelt good, tasted good even (probably because it was a teeny lick), but in the mayo was bad in a grab the back of your throat peppery saltiness (I didn't add any additional salt to the PF mayos, but only to the pure OO mayo). Even the PF/OO-2/2 mayo was strong. The OO overpowered the PF in the PF/OO-1/3 mayo. The OO only mayo was too olive-oily (note that I did have to use more) – I only realized later that normally I make mayo with canola oil.
Why did the PF fail me? I did not like the Parma sausage co. proscuitto because it was a bit too salty. So silly me – of course the fat, which is where the 'cure' is applied, would be saturated with salt. Rendering that and using in preparation which has a large proportion of it cannot be good*.
BLT notes:
Good bacon from Parma sausage company, red leaf lettuce, Campari tomatoes (the 'Uglyripe' in pic wasn't as tasty), Breadworks rustic Italian leaf (via PennMac co.) – toasted in residual BF in skillet, 4mayos.
Best was the BF/OO (BF/OO-2/2). The OO one was good but too OO-ey as noted above. Hellman's (canola) mayo I would rate third just about over the PF/OO because I feel silly not to have thought about the salt issue. The Hellman's mayo itself was decent, sweetish though very bland compared to all the others.
Nevertheless, all were very good - I had a great time and swell dinner!
Pics – yes I did take some pics. I am reluctant to post them in this otherwise fine thread. By viewing them here (slideshow; click on pics for some description), you agree never to cast aspersions on my sanity.
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Bottomline: A mayo with 25% bacon fat in vegetable oil would be fantastic. Note that this is untested.
*
I have used proscuitto fat before – in place of some pancetta etc. – but these have but a small proportion of the fat in the total dish volume. Plus this was from a proscuitto (from Caputo's in Chicagoland) that I actually liked to eat. Goes to show, if you wouldn't eat/drink it, don't use it in your cooking…