
Before I even begin to tell you about this sandwich, I’m going to suggest you stop what you’re doing, go directly to the nearest kitchen, and whip up a bowl of homemade miso mayonnaise. I wish someone would have given me this advice whenever this recipe was first invented because when I made it last weekend, I immediately felt all those years spent eating other mayonnaises had been squandered. If you’re someone who likes mayonnaise, then you probably already know the wonders of a homemade version. Now, imagine how good that homemade mayonnaise is, and then imagine it even better as if it’s been given a flavor boost. That’s miso mayo. This mayonnaise and the sandwich were in the second issue of Lucky Peach
. In the magazine, the sandwich was made with bluefish, but I used Texas redfish. Really, there’s so much going on with flavors from the aforementioned, amazing mayonnaise and the blackening spice, just about any fish or tofu or even blackened bread would make a terrific sandwich here. I cheated in a couple ways in making this. I skipped the recipe for the homemade bread-and-butter pickles for the sandwich. It didn’t seem worth doing since cucumbers aren’t in season right now, and I have a preference for sour dill pickles with no sign of sweetness anyway. So, I used dill pickles from a jar. Next, I cheated with the blackening spice mix. I somehow blanked on the ground konbu in the ingredient list and didn’t even know I should have looked for it at the grocery store. Also, I miscalculated how little mustard seed I had on hand and failed to buy more for this. Oddly enough, I did, however, have the grains of paradise, whole allspice, and tomato powder, along with all the other ingredients, in my spice cabinet. Next time I make this, I will try to get the konbu for the umami it would have added to the mix. In general though, with so many different spices involved, if you add more of one item, less of another, or need to skip something, you’ll still have a great spice mix.The full list of everything in the blackening spice is: three tablespoons grains of paradise, and I’ve gone on about grains of paradise once before, two teaspoons black peppercorns, one teaspoon coriander seed, four tablespoons mustard seed, one teaspoon cumin seed, one teaspoon whole allspice, one quarter cup ground konbu, three tablespoons onion powder, two tablespoons cayenne powder, one quarter cup tomato powder, and one half cup sweet smoked paprika. Note: in the magazine, the quantity for cayenne powder is six tablespoons, and I think that must have been a typo. I like things spicy, but that seemed like an extraordinary amount of cayenne. I used two tablespoons and tasted to see if I wanted it spicier. Two tablespoons gave it a good amount of heat even to my palate. The whole spices were toasted in a dry skillet, and then ground and mixed with the powdered spices. Fish fillets were seasoned with salt, dredged with the blackening spice, and seared in a hot pan with a little oil. The blackening spice was also used on some oven fries. Again, I cheated. In the magazine, the blackened potato chips were to have been fried. Now, for that amazing mayonnaise, you make a typical homemade mayonnaise and add one tablespoon of champagne vinegar and two tablespoons of white miso. I don’t seem to have the gene that allows one to make a mayonnaise with one egg yolk. Mine always breaks when I start with just one yolk, and I always start over with another yolk and mix the broken oil mixture into the second yolk. I also seem to have better luck with a hand mixer than with a food processor or blender. I’ve used a whisk as well, but a hand mixer is easier. The sandwich was built with toasted and buttered bread, shredded lettuce, sliced pickles, the blackened fish, and the wonder that is miso mayo.
The spice mix does exactly what it’s intended to do once it hits the hot oil in the pan. It blackens as quickly as the fish cooks, and that deepens the flavors of the spices. It was just as delicious on the oven fries, and the extra miso mayo makes a great dipping sauce for them. My mind is already swirling with thoughts of other ways to use that mayonnaise.
I made homemade Kaiser rolls, and I had a plan for them. I had been thinking about these sandwiches on Kaiser rolls for a year, or the recipe had been sitting in my files for that long anyway. Last September, these num pangs appeared in Food and Wine, and the combination of big flavors and crisp vegetables was something I wanted to try. They could have been made with just about any roll, and semolina baguettes were suggested as another option, but they were shown on Kaiser rolls which seemed just right. There’s a lot going on in these sandwiches. The julienned carrots aren’t just raw carrots. They’re crisped in vinegar with a little sugar. And, the pesto is no standard pesto. It’s made with Thai basil and spiked with anchovies, lime juice, and fish sauce. That’s not all. While plain mayonnaise would have been good, drizzled with sriracha, it was even better.So, to make those quick-pickled carrots, cider vinegar and sugar were combined and the julienned carrot sticks were tossed in the mixture. That was left at room temperature for an hour and stirred from time to time. The pesto was made by whizzing the following in a food processor: Thai basil leaves, anchovies, lime juice, fish sauce, crushed red pepper flakes, and chopped garlic. The Kaiser rolls were split, toasted, and buttered, and then it was time to build sandwiches. One side of each roll was spread with mayonnaise and drizzled with sriracha, and the other side was topped with pesto. The sandwich was layered with thinly sliced cucumber, piquillo peppers, carrots, and cilantro leaves. 
This sandwich has been by far my favorite use of these Kaiser rolls. For a sandwich full of vegetables, the flavor was incredible. The smokiness from the piquillos was a nice touch, but even raw red bell pepper strips would have been great. I definitely recommend the pesto, and there’s a tip in the recipe intro for a quicker version. Store-bought basil pesto could be doctored by adding chiles, lime juice, and fish sauce for a similar result. I also wouldn’t skip the sriracha on the mayonnaise. In fact, that will be appearing on almost all of my future sandwiches.
This dish was inspired by a Bobby Flay recipe, but I made a few changes. Bobby’s dish was tuna salad made with the mayonnaise and put into a sandwich with watercress. He suggested a lemon-habanero mayonnaise, but I’ve moved on from lemon for now so I used lime. Also, I used less lime juice and less onion than suggested, and I added garlic. I used the mayonnaise as a sauce over grilled salmon, and since I couldn’t find watercress, arugula micro greens dressed in a lime vinaigrette danced on top. As a sauce, it’s a little acidic, so next time I might cut back on the reduced lime juice, but if it were put into a sandwich or on a fish taco, it would be fine. Actually, on a fish taco it would be amazing. The mayonnaise gets even better after sitting in the refrigerator overnight. It was divine on a veggie burger the next day. Grilled chicken would also be a good vehicle, and I might try that tomorrow. When making the mayonnaise, I would recommend adding just a little habanero at first, tasting, and adding more if you want it hotter. I ended up using one and a half habaneros this time as they were kind of small. Here's my rendition of the mayonnaise:
2 c fresh lime juice
1 to 1 1/2 habanero chiles, seeded and chopped
1 t lime zest
1 c excellent, prepared mayonnaise (or, make it fresh)
2 T red onion, finely diced
½ large stalk celery with leaves, finely diced
2 cloves garlic, chopped
2 T fresh flat-leaf parsley, chopped
Salt and pepper to taste
-Place lime juice in a small saucepan and bring to a boil. Cook until reduced to 1/3 c. Remove from heat and let cool slightly. Place lime syrup, habanero (a little at first), and remaining ingredients in blender and blend until smooth. Add more habanero to taste.