Preheat oven to 400 degrees F.

Rinse baby broccoli and remove any stray leafy pieces. Cut off an inch or so from the bottom of the stalks. Spread evenly on a baking sheet. Use two baking sheets, if needed, so the broccolini is spaced out.

Drizzle with olive oil and season with kosher salt and cracked black pepper. Spread back out onto the baking sheets, so they have room to breathe.

Roast in the preheated oven for 13 to 15 minutes, until black bits start to form on the florets. Use tongs to flip halfway through roasting, as desired, or just let it roast without touching it.

Sprinkle with flaky sea salt and cut lemon wedges to serve.