Let me tell you about the smash burger, because in America I discovered this thing late and fell for it hard. Where I come from, outside Naples, a hamburger was not part of my vocabulary. My grandmother would have looked at a smashed patty like it was an insult to the meat. But then I ate my first proper smash burger at a roadside place in Tennessee, crispy lacy edges and all, and I understood immediately. This is cooking with cuore. And now chef Brad Leone has demonstrated the technique, and you can watch it over at MSN.

The whole secret is counterintuitive if you grew up, like me, being told to handle meat gently. With a smash burger, you do the opposite. You take a loose ball of ground beef, maybe two ounces, drop it on a screaming hot flat top or cast iron pan, and then you press. Hard. Immediately, not ten seconds later, because those first seconds are when the meat is still loose enough to spread thin and make maximum contact with the metal.

And this is the physics of the thing, which I love: more contact with the hot surface means more Maillard reaction, that beautiful browning that happens when proteins and sugars meet high heat. The thin edges of the smashed patty cook fast, the fat renders out and fries those edges in their own grease, and you get that lace. That crispy, almost frico-like border of beef. In Italy we make frico with cheese in Friuli, crispy lacy cheese, and a great smash burger edge is the same pleasure, different ingredient.

A few things matter. The pan must be hot enough that the meat hisses the moment it lands, otherwise you steam the patty and get gray, sad meat. Don't smash with a spatula that has no holes, because you want the steam to escape, not trap it under the patty. Press flat and thin, season generously with salt, and then, importantissimo, leave it alone. Let the crust form. When the edges go dark and lacy, flip once, add cheese, and you are seconds from done.

The other mistake people make is using expensive, lean beef. Wrong direction. You want fat, around 20 percent, because the fat is what fries those edges crisp. Good food needs care, not money, and the smash burger is proof of this. Cheap fatty beef, a hot pan, patience, and the confidence to press down hard, and nothing else.

Brad Leone showing this on video is worth your time, because smashing technique is easier to understand when you watch someone's wrist do the work. The pressure, the timing, the moment of the flip. These are things my grandmother taught me to read with my eyes and hands, not from a page.

So this weekend, heat the cast iron until it smokes a little. Roll a loose ball of beef. Smash it flat and listen. When the edges turn brown and lacy and the kitchen smells like a diner at midnight, you did it right. Then tell me it isn't one of the best things America taught me.