Homemade onion powder Minimise food waste by making onion powder using your discarded onion peels. COOKING TIME: 3 hours | MAKES: ⅓ cup of onion powder INGREDIENTS 5 cups of loosely packed onion skins (you’ll need approximately 6 medium onions)   METHOD PREHEAT the oven to 100°C. ARRANGE 5 cups of loosely packed onion skins … Continue reading Homemade onion powder