Smashed New Potatoes with Peas, Lemon, and Pearl Onions

Put the potatoes into a large pot, cover them with cold water, and add a large pinch of salt. If they're large, cut them in half. Bring to a boil and simmer until the potatoes are fork tender, 20 to 30 minutes. Drain . Stick a fork into the potatoes, 1 at a time, lift them out of the colander and peel with a paring knife. Toss the potatoes into a bowl and roughly crush them. Drizzle with olive oil and season with salt and pepper.

Heat 2 tablespoons olive oil with the butter in a medium saucepan over medium heat until the butter melts. Add the pearl onions, sugar, and lemon juice and cook, stirring frequently, until the onions are browned, 5 to 6 minutes. Add the lemon slices, peas , and lemon zest and continue cooking until the peas are hot. Season with salt and pepper. Dump the vegetables over the potatoes in the bowl, drizzle with extra-virgin olive oil add the parsley and dill and taste for salt and pepper. Scatter the watercress over the top, fold it in just until it wilts and call it a day.