1) Preheat oven to 220C/Gas 8.
2) Mix the house seasoning together and store in an airtight container for up to 6 months.
3) Line a sheet tray with parchment. In a large bowl, toss the sweet potatoes with just enough oil to coat. Sprinkle with the house seasoning and paprika. Spread the sweet potatoes in a single layer on the prepared baking sheet, being sure not to overcrowd. Bake until the sweet potatoes are tender and golden brown, turning occasionally, about 20 minutes.
Let cool for 5 to 10 minutes before serving.