This recipe yields the best tasting greens I have ever eaten! I have yet to have a batch of bitter greens when cooked this way. This recipe has the potential to change the minds of green-haters and may even bring about a cute southern accent. Blanching the greens before adding to the slow cooker helps remove the natural bitterness. I usually make it with kale and beet greens but other greens work as well. The greens pair well with pilsner or an off-dry riesling, especially if you use the balsamic vinegar.