The principal ingredient in a Spanish tortilla is of course egg, followed by potatoes. There’s also some dairy (here in the form of both milk and cheese), but what differentiates one tortilla recipe from another is what you use to flavor it. This tortilla has scallions, garlic, red bell pepper, smoked paprika, and parsley. The fat for cooking is of course olive oil (how could it be otherwise?), and there’s salt and pepper too. That onion turned out to be rotten; thankfully onions are cheap and I had an alternate onion at the ready.

The recipe, rather unfortunately in my view, calls for the chopped onion, cut red pepper, and minced garlic all to be cooked at the same time, over medium-high heat. As a result, my garlic was overcooked if not entirely burnt before the bell pepper was even softened. If I were writing this recipe, I’d probably say to give the peppers a head start, followed by the scallion, and then the garlic at the very last minute — and I’d probably specify lower heat and a longer cooking time, too. (The recipe is also pretty unclear about cutting the peppers: it says “1-inch pieces”, but it clearly can’t mean one inch squares, and that’s clearly not what’s in the photo. I cut the pepper into quarter-inch strips and then cut the strips so they were about an inch long.)

Unlike the onion, the minced scallion — along with Parmigiano Reggiano, salt, and pepper — is mixed without cooking into the egg-and-dairy mixture that will form the base of the tortilla.

The potatoes are boiled with skins on, then peeled and sliced into disks. I had trouble figuring out when the potatoes were done, but I think I got it close to right.

Now we skip way ahead. The potato disks were fried in a 12-inch stainless-steel skillet — I bet cast-iron would be even better, but I don’t have one that big — and then the other cooked vegetables are spread on top. It was at that point that I should have added the smoked paprika and the remaining salt and pepper, but I forgot — which is why you see those red streaks across the top, as I tried to compensate by mixing the seasonings together and scattering them across the top of the tortilla. After the egg base is poured in, the whole skillet gets transferred into a hot (450°F) oven to finish cooking, and when it comes out, it looks like this. (Well, except for those red streaks, which wouldn’t be visible had I not fumbled the instructions.) The tortilla has to finish cooking out of the oven, and it’s then ready to depan and serve:

Even though it’s in the “breakfast” chapter of the cookbook, I had my first serving for dinner, with a side of steamed spinach — and the following two days, when work was closed due to snow, I had another slice for lunch.

Nutrition

The recipe says it serves 6 to 8. As the main protein component in a meal, I think 6 is reasonable; you could easily get 12 or 16 pieces out of it to serve as an appetizer or hors d’oeuvre. Even at the largest serving, it’s still quite low-calorie by my calculations (1/6 pie is about 243 cubic centimeters, for a nutritional density of 1.3 kcal/ml). Here’s what the nutrition calculator has to say: