Crinkle-cutting is slicing that leaves a corrugated surface. This is done with corrugated knives or mandoline blades.
If the potato is turned 90° between cuts, the result is waffle fries. Potato chips with a waffle fry cut, however, are more properly characterized as "lattice cut" chips.
Pommes gaufrettes, waffle fries, or criss-cross fries are fries obtained by quarter-turning the potato before each pass over the corrugated blade of a mandoline and deep-frying. 
- "Les pommes gauffrettes" (in French). "Chef Simon" Sabine et Bertrand SIMON cole. Retrieved October 3, 2015.
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