I'm not going to lie, it took me a few batches of smashed potatoes to get the hang of it. Here are a few important tips I've learned: Smash them while hot! The starch firms up as the potatoes cool, which makes it harder to smash them. Don't actually smash, but push: Hold the potato with one hand (to keep it from totally falling apart) and then push down on it firmly with your tool of choice (I use a potato masher, you can also use a measuring cup or the bottom of a sturdy glass). Don't worry if they fall apart a little - just kinda push the potato back together again and it will be fine.