When you mash potatoes, you are actually breaking up the starch cells.You are not just pureeing them to a smooth consistency; you are also activating the starch. As you continue to mash or beat the potatoes, they will get stickier and stickier.
When you try to make mashed potatoes in a food processor, you will likely create a substance akin to wallpaper paste, and the potatoes can’t be salvaged.
For more tips, see How to Make Perfect Mashed Potatoes.
For more recipe ideas, see Our Best Mashed Potatoes.
Recipe: Perfect Mashed Potatoes