If garlic isn't peeled, peel it by hand, or by using a peeler tube or by using the shaking method inside a mason jar. Just place unpeeled garlic cloves inside a clear mason jar, screw on the lid and shake vigorously until all the peel is removed.
Using a paring knife, remove any green sprouts or brown stems from the individual peeled garlic cloves.
Add the garlic cloves to a food processor fitted with a metal blade. Process in short pulses until the garlic is evenly minced. Be sure to stop and scrape down the sides as needed. You can stop when its just minced or continue until it becomes a paste. I prefer the paste.
Transfer the garlic paste into small freezer safe storage bags. You can use a knife to draw lines to partition small 1 inch squares, which will be equivalent to about 1 teaspoon of garlic paste.