Position the oven rack in the middle of the oven , and preheat it to 356° F / 180° C (160° C fan).
Cut 2.5 lb (1 kg) potatoes into chunks or wedges (peeled or unpeeled), place on a large baking pan (see note 4)
In a separate small bowl or measuring jug, whisk together, ¼ cup (60ml) olive oil, 2 Tablespoons (30ml) lemon juice, 1 cup (250ml) vegetable or chicken broth, 3 or 4 garlic cloves, peeled and thickly sliced, 1 Tablespoon dried oregano and 1 teaspoon salt.
Pour this mixture over the potatoes, tossing in the pan to coat well.
Roast for 20 minutes. Turn potatoes, roast for a further 20-25 minutes until the liquid is mostly absorbed by potatoes/evaporated and you're left with mainly olive oil in the pan. (See note 5)
Optional: Top with feta and sliced olives to serve.