Can I boil the potatoes ahead?

Yes. Boil and squash them up to a day ahead, keep them covered in the fridge, then roast when needed.

Crispy Smashed Potatoes

Boiled, squashed and roasted until the edges are shatteringly crisp.

By The Food Gene 27 September 2026 Updated 23 October 2026

Squashing the boiled potatoes creates rough edges that turn golden and crunchy in the oven.

Let them steam dry after boiling for the crispest result.

Serves 4

Mark step 1 as done

Heat the oven

Heat the oven to 220°C (200°C fan).
Mark step 2 as done

Boil

Boil the potatoes in salted water for 15 minutes until tender. Drain and leave to steam dry for 5 minutes.

Timer: 15:00
Mark step 3 as done

Squash

Spread on an oiled tray and press each one flat with the bottom of a glass.
Mark step 4 as done

Roast

Drizzle with the oil, scatter with rosemary, salt and pepper, and roast for 35 minutes, until deep golden and crisp.

Timer: 35:00

Can I boil the potatoes ahead?: Yes. Boil and squash them up to a day ahead, keep them covered in the fridge, then roast when needed.