I recently made this recipe, but I am wondering if there are any names for this type of slicing (for potatoes, and otherwise). I suppose it somewhat resembles "blooming" an onion.
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Potatoes that have been sliced almost all the way, buttered, spiced and then roasted until they fan out often go by the name Hasselback Potatoes.
Reputedly they were invented by a Swedish chef in the 1950s and the name is based on the name of the Swedish restaurant, Hasselbacken, in Stockholm.
I don't think there is a specific culinary term for "slicing almost all the way".
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This method is commonly known as "hasselback".
