I have a non-stick Dash mini waffle maker and I have had success not greasing my waffle maker when making chaffles. However, to ensure that the batter does not stick, I do recommend that you spray the waffle maker with non-aerosol cooking oil, as aerosol can make the iron sticky and hard to clean. To make a non-aerosol cooking oil, simply add some oil to a spray bottle and lightly spray both cooking surfaces of the waffle maker.