Add the glutinous rice flour, sugar, salt and baking powder into a bowl. Whisk to mix everything well.
Add in the vanilla extract.
Add ½ cup(8 tbsp) of milk and mix. If the mixture is still dry, add the remaining milk 1 tbsp at a time. The batter should be very thick, dropping consistency not flowing consistency. Different brands of sweet rice flours may need different amounts of milk so add milk gradually.
Heat a waffle iron. Scoop and drop quarter portion of the batter in the center of the iron. You can see in the picture that the batter is thick and doesn't spread a lot.
Cover and cook for 4-5 minutes or until the outside is crisp.
Serve hot, fresh for the best texture. Serve with sweet red bean paste/ ice cream/whipped cream with fruits.
Video
Notes
Add matcha powder/cocoa powder/coffee powder for flavour variations. Mix it in along with dry ingredients.
Make savory waffles by skipping the sugar and adding cheese and jalapenos. Here is a recipe for my Jalapeno cheddar waffles.
It is important to cook till the outside is crisp. Takes about 5 minutes.