Butternut Squash with olive

2 tablespoons olive oil 1 medium onion , halved and thinly sliced 3/4 cup apple cider 1 3/4 lbs butternut squash (peeled, seeded and cut into 1 inch cubes - 5[...]

2 lbs butternut squash, see note 2 large celery ribs , chop 2-inch pieces 2 tablespoons water 1 1/2 cups thinly sliced leeks or 1 1/2 cups coarsely chopped[...]