I’ve used distillate for cooking and had amazing results. Seeing as how the distillate is already decarbed, I used a double boiler. I used 2 cups of unrefined coconut oil. I dissolved the oil in the double boiler then added the distillate. Simply let it melt in to the oil for about 10 minutes on a low temp. Some of the strongest edibles I have ever made.
Many people know to decarboxylate cannabis in the oven first, but it’s worth noting here for anyone who doesn’t know or doesn’t see the point in doing so. You can skip this step and add your raw cannabis to the slow cooker to decarb in the oil, but you might find that this longer oil soak simply worsens the taste of your cannabis oil. It’s also more difficult to control the temperature in a slow cooker and you risk burning off essential cannabinoids, but in an oven, you can set the temperature low and keep it steady.