Pre-heat the oven to 450°F.
In a medium bowl, coat the sweet potato chunks in oil and sprinkle with sea salt.
Spread over a parchment lined baking sheet or baking stone and roast for 20 minutes or until sweet potato chunks are brown on the edges and have a little crunch on the outside.
Stir/toss potato chunks once mid-way through baking.
These are meant to be made and eaten right away; they can be made in advance; however, they will not stay crunchy.