This is the caveman method. It’s loud, satisfying, and works like a charm. You will feel like a jungle hunter.
Find a flat rock or a concrete slab. Place the nut pointy-end up. Hit it straight down with a rock or a heavy hammer.
Pro tip: Don’t smash your fingers. Your fingers are softer than the walnut. I speak from painful, purple-fingered experience.
The Grocery Bag Trick
Put the nut inside a sturdy grocery bag. Fold the bag over first. This catches the flying shells and the brown goo.
Best Way To Crack Black Walnuts and What To Do With Them In The Kitchen
Now, go to town with your hammer. The bag keeps the mess contained. You’ll thank me later when your driveway isn’t stained brown.