Here’s how you make smashed fries:
The kind of potato makes a difference when it comes to texture. Depending on the type, the fries might be a little more creamy (when made with new potatoes or many waxy varieties) or more fluffy (when made with banana fingerlings, blue or purple potatoes).
Use a fork to smash, instead of something flat. A fork will give the potatoes a more textured surface — ridges and valleys — and those little crispy bits.
Where French fries are typically fried twice — once at a lower temperature to blanch, then again at a higher temp to crisp — smashed fries are boiled first and fried only once.
You can boil the potatoes up to a few days in advance, then refrigerate them until you’re ready to fry (perfect when planning ahead for company).