Yes, you can steam the spinach instead of blanching to make Sigeumchi namul. In fact, steaming is a much healthier way to eat spinach as its nutrients are better retained. However, you will still need to remove the excess water from the spinach even though it wasn’t dipped in water. This is because the condensation process still makes the vegetable wet. Once cooled, place the spinach between the palm of your hands and squeeze until all the water is removed.