Remove herbs from stems and place in bottom of ice cube tray (chopping them saves you time later). Simply pour olive oil over the top and stick the tray in your freezer, once its frozen store the herb-cubes in a bag.
Preserve herbs in ice cube trays with olive oil. Freeze in trays and then bag in ziploc bag. Use when cooking by popping herb cube in pan. Herbs that freeze well are: rosemary, sage, thyme and oregano. Oil is infused with herbs.