
Crispy, golden, and fragrant with fresh rosemary, these baked sweet potato chips hit that perfect snack-food craving without a drop of industrial vegetable or seed oil in sight. Coconut oil is the fat of choice here, and it does a beautiful job helping each thin round crisp up in the oven while adding a subtle richness that pairs surprisingly well with the earthy herb and warm hint of ginger. The real secret to getting that satisfying crunch is slicing the sweet potatoes as uniformly thin as possible — a mandoline makes this almost effortless — so every chip bakes evenly instead of leaving you with a mix of burnt edges and soggy centers. Spreading them in a single layer and flipping halfway through gives the oven heat a fair shot at both sides, and letting them cool on a rack is what takes them from good to genuinely crispy. Most store-bought chips rely on refined oils that many people are actively trying to avoid, so making your own means you know exactly what went into the bag. These are the kind of snack you set out for a crowd and watch disappear before you've even sat down.
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Preheat the oven to 375°F (190°C). Line two large baking sheets with parchment paper and set a wire cooling rack over one of them if you have a second rack available.
Using a mandoline set to 1/16-inch thickness, or a very sharp knife, slice the sweet potatoes into rounds as uniformly thin as possible. Uniform thickness is the single most important factor for even crisping — thicker slices will stay chewy while thinner ones burn.
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