Makes a great topping for pasta and casseroles. Walnuts are a great source of super-healthy fat. Powdered garlic helps keep this tasty for longer. If you are confident you’ll eat it all within a week, use fresh instead. This recipe yields about 2 one-cup canning jars. You can keep one in the fridge to be consumed within a month and the other one in the freezer (crumbled nuts can go rancid faster than whole).