Pork Tenderloin with Vegetables

Start with the potato, because it's the slowest thing in the pan and everyone forgets that. Cut small — proper small, pea-sized cubes, not "diced" in the loose sense — because a domestic hob pushing out vegetables in a hot pan for a few minutes has no patience for a potato chunk the size of a Sunday roast one. Small cubes cook through in the time it takes the pepper to soften and the peas to go from matte to bright green. If the potato's too big you'll end up with scorched outside and a bullet in the middle, and no amount of wine fixes that — wine evaporates, it doesn't steam-cook a potato through.

The bell pepper and the fresh peas are there for colour and a clean, slightly grassy sweetness that cuts the richness of the pork — frozen peas work perfectly well if fresh ones in the pod aren't about; they go in a minute or two later since they're already cooked through from blanching at the factory, and you're really just warming them and catching the flavour of the pan. Basil sprigs left whole (not chopped) are there to perfume the oil, not to be eaten as basil — think of it the way you'd use a bay leaf, there for the oil to carry its smell, then out or pushed to the side before serving.

The olive oil should be decent but doesn't need to be your good finishing bottle — any oil with no smell of its own that can take real heat will do the vegetable side; for the pork, where the oil is doing direct contact with a hot grill, you want one that won't burn and turn bitter before the meat sears, so again neutral is safer than a heavily peppery extra virgin. The white wine's job is purely mechanical: it lifts whatever's caught on the bottom of the pan — the fond — and turns it from "stuck and about to burn" into a thin, winey liquid the vegetables sit in. Any dry white does this; a sweet wine will fight the pepper and potato rather than support them, so skip dessert wines even if that's what's open.

For the meat, eight slices for four people means two each, which only works if you're buying tenderloin — the loin's leanest, most tender cut, with almost no fat to render and nothing tough to break down, which is exactly why it suits a fast grill rather than a slow roast. This is a different economics from your Sunday joint: the joint is a cheaper, tougher cut that needs hours of gentle heat to become tender, while tenderloin is already tender, so the whole cooking logic flips — short, hot, and done. A domestic hob won't give you a proper char-grill's heat, and that's fine; a ridged griddle pan or even a very hot ordinary frying pan gets you close enough, you're chasing a browned crust, not grill marks for the look of it.

Season the meat before it touches heat, not after — salt pulled moisture to the surface earlier would have made the sear weaker, so salt right before cooking, and oil the meat rather than drowning the pan, because oil in a near-smoking pan burns and turns acrid, while oil on the meat's surface browns with it. Press a finger to the slice as it cooks: raw gives, cooked resists — that's your sense-cue if you don't own a probe thermometer, but if you do, 70°C read is your floor, not your target to hover at for ten minutes while you finish the veg.

Patience here isn't about long cooking — this dish is fast — it's about not rushing the two separate timings into one. Get the vegetables started, let them actually sit in the wine a moment rather than pulling them the second it's poured in, and only then turn to the meat. Trying to run both pans at identical speed usually means one of them gets ignored, and it's always the vegetables that end up raw-crunchy because the meat's smell and sizzle pulls your attention first.