Use large Russet potatoes: I use big baking potatoes because they're starchy enough for that soft center and large enough to cut into good-sized rounds.
You don't need a cookie cutter: A reader asked about this, and you can absolutely just cut the potatoes into evenly sized rounds with a knife. Trim the sides if you want the traditional cylinder shape, but it won't change how they taste.
Keep the rounds the same thickness: This matters more than getting them perfectly shaped. Evenly sized pieces will brown and cook through at roughly the same rate.
Dry them before browning: Pat the cut potatoes well with paper towels. Removing surface moisture helps them brown instead of steam when they hit the skillet.
Give them time to brown: Don't rush the first skillet step. Those deeply browned flat surfaces are a big part of what makes fondant potatoes different from potatoes simply baked in broth.
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