Combine all ingredients in a blender, blend until well-combined. Dough will have a liquid consistency.
Pour the dough into a bowl. Cover with lightly wet kitchen towel for between for one hour. The dough will rise increase in size.
Pre-heat a non-greased skillet over medium-high heat or an electric griddle using the flat griddle.
To prepare medium size Qatayef to be stuffed with walnuts or cheese use the ½ measuring cup. However, to prepare mini (Asafiri) Qatayef to be stuffed with cooked cream (Kashta) use the ¼ measuring cup.
On medium heat, pour several ½ cup or ¼ cup of dough depending on the size of skillet or the griddle. Keeping the Qatayef about ½ inch apart.
Keep Qatayef without turning, a lot of bubbles should appear on surface. If bubbles did not appear, it means that the batter does have the right consistency. It can be fixed by adding more water to batter as it might be too thick. Do so in ¼ cup additions, whisk and try again.
If you add water and you did only get a few bubbles, then the baking powder you are using is old. Add 1 more teaspoon of baking powder, which and try again.
Once the surface is dry and no longer shiny, this means that Qatayef is done. The time depends on the size of the Qatayef, the mini ones take about 1 minute, whereas the medium ones 2-3 minutes.
Remove the Qatayef onto a clean kitchen towel and cover to prevent from drying out. It is preferred to keep them to slightly cool and start stuffing.