I do find it a bit ironic that you found a Jamie Oliver recipe pretty and useless. I know many cooking personalities don't much care for him.
When I was mixing up my sandwich sauce I got a complaint about pepper smell. Considering I was mixing in sriracha, the complaint was valid
Still don't have the sandwich sauce locked. I thought it was ranch and sriracha, but that tastes bad.
What's worse is I can't find a clone sauce, both Google and Bing show me results for what they THINK I want, instead of what I actually want.
I know how to make "spread" aka "burger sauce". That isn't what I'm trying to make.
The official ingredients don't help much either, it's mostly soybean oil and "spices".
For reference, I'm trying to replicate Jack in the box's "good good" sauce.