fine-mesh colander over a bowl or large glass measuring cup then pour the entire contents of the blender into the strainer. allow the butter to rest for a few minutes while the buttermilk drains into the bowl.
now take the butter over to the sink and rinse it (in the strainer) under cold, running water rocking it back and forth in the strainer somewhat vigorously until the water runs clear. this is the ‘hands-free kneading’ step that helps to remove liquid from the butter. you can wrap the butter ball in a clean sheet of butter muslin and knead the butter with your hands under running water, but i find this 