Once you've eaten as much fresh pesto as you can stomach and have given away enough dill, marjoram, and thyme to outfit a small herbarium, it’s time to consider plan B: freezing and drying those herbs for later use.
Making butter is totally easy, especially if you have a food processor. Raw butter won't stay fresh forever, though - so it's great to be able to freeze some for future months. What's my secret for perfect pats of frozen butter???