The term seems to come from a technique for preparing plantains. Sub in potato.
May try this technique with cut up potatoes to see if there is an easier way to something similar to "hot potatoes" which we cook, but are a bit of a pain to prepare.
As enjoyable as pounding the lights out of an innocent garlic clove or olive may be, probably the most satisfying flat food to prepare is Susan Spungen’s potato “tostones.” You steam baby potatoes until they’re just tender, let them cool enough to be handled, then press them between your palms until they flatten a bit and you hear their skins begin to snap. Next, you heat up some oil in a skillet and fry the potatoes until they’re nice and brown on their flat sides. Each potato is then crisp and caramelized but still moist inside.
http://cooking.nytimes.com/recipes/11656-potato-tostones
Another more of a recipe
Ingredients
- 12 to 15 baby red or yellow potatoes (about 1-1/2 oz. each; 1-1/2 to 2 inches in diameter)
- 2-3/4 tsp. kosher salt
- 1/2 cup extra-virgin olive oil
Directions:
Boil the potatoes:
Put the potatoes in a large saucepan (preferably in one layer) and cover with at least an inch of water. Add 2 tsp. kosher salt to the water. Bring the water to a boil over high heat, reduce to a simmer, and cook the potatoes until they are completely tender and can be easily pierced with a metal or wood skewer. Make sure they are cooked through but don’t overcook. The total cooking time will be 30 to 35 minutes.While the potatoes are cooking, set up a double layer of clean dishtowels on your countertop. As the potatoes finish cooking, remove them individually from the water, and let them drain and sit for just a minute or two on the dishtowels.
Flatten and cool the potatoes:
Fold another dishtowel into quarters, and using it as a cover, gently press down on one potato with the palm of your hand to flatten it to a thickness of about 1/2 inch. Repeat with all the potatoes. Don’t worry if some break apart a bit; you can still use them.Roast the potatoes
http://www.finecooking.com/recipes/crispy-smashed-roasted-potatos.aspx
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