Had farmer's market radishes and wondered if something could be made from their good-looking (edible but bitter) leaves. This was the result. Its NOT going to be mistaken for basil pesto, but its still delicious in its own way and can be used for the same applications. By using the radish leaves you're turning one veggie into two--very budget friendly! I made this with the good leaves from two bunches, maybe 2 or so unpacked cups of leaves. Just separate the radish leaves from the radishes, keeping the leaves that are bright and crisp and discarding any that are discolored or wilted. You'll probably have the best to choose from with your own homegrown radishes or from the farmer's market (probably not going to be as fresh at the grocery store). Wash them well and pat dry, then you're ready to pulverize...Note: I found the pesto to be okay when I first made it, but really a bit bitter. The tsp of sugar really goes a long way! It will still be slightly bitter, but in an enjoyable, kind of peppery/tart way more like arugula. Give it a try and don't be afraid to adjust sugar/salt/pepper to find the balance you prefer.