Find a rock that is smooth and is about the size of your palm. Look for one that is comfortable and not too heavy in the hand. When you first pick the rock, run it through the dishwasher a few times and it’s ready to use. If you don’t have a dishwasher just wash it in hot soapy water with a bit of bleach.

To crush garlic, hold the rock and smash it on a clove of garlic. Pull out the skin and there you have it, crushed garlic ready to cook with. Cleaning the rock is a dream, just throw it in the dishwasher utensils basket and it’s perfect to use for years and years.