Preheat a fan forced oven to 200C/ 390F (220C/430F for no fan). Cover two half sheet baking trays with about 2 tbsp of olive oil each and spread around evenly. Set aside.
If they need it, wash your potatoes to make sure there’s no dirt on the skin. Use a kitchen brush if you need to. Add the potatoes to a large pot and fill the pot with water, covering the potatoes by about 1 inch. Cover the pot with a lid and bring to a boil. Cook for about 10-15 minutes (if using small potatoes) and poke with a knife to test if they’re cooked all the way through. The knife should go through easily with some resistance.
Once cooked, carefully strain the potatoes and transfer to two large, well oiled baking trays. Use a fork or potato masher to smash the potatoes. Allow to cool for 5 minutes before sprinkling with garlic powder, onion powder and some extra salt. Drizzle the potatoes with more oil, about 2-3 tbsp on each tray. Bake for 20 minutes, take out of the oven and use a spatula to carefully flip over. Bake for a further 20-30 minutes or until deeply golden and crispy. Sprinkle with parsley and serve.
Notes
Potatoes - this recipe will work with pretty much any potato! I used small starchy potatoes which have a fluffier inside, but waxy potatoes will give you a smoother inside. You can use different sized potatoes too. Smaller ones will come out crisper, larger ones will have more of a fluffy inside.Storage - Potatoes can be stored in an airtight container for up to three days. Freeze in a single layer than transfer to a freezer bag for up to 2 months. Bake in the oven to crisp up again.Nutrition - is based on per serving. Each serving is about 6-8 potatoes.A note on measurements - all ingredients in this recipe are offered in Australian cup measurements and weight measurements. Australian cups are different to other cup measurements in different places in the world which means that no cup measurements anywhere are a reliable way to measure! Weight measurements are created by me, in my kitchen here in Melbourne Australia. The best way to get recipe success is to measure ingredients by weight, using kitchen scales.