The vegetable oil in the batter should help the sticking but it’s also important to use a good non-stick pan and to grease it well with extra vegetable oil or a little butter. I tend to add a splash of oil to the pan and use a piece of kitchen roll to wipe it around the pan so you get even coverage. Don’t have the pancakes on a high heat either or they will burn on the outside but still be raw in the middle. These pancakes are fluffy and thick so it takes a few minutes to ensure they are cooked all the way through. Medium to low heat works well.