In a large bowl or the bowl of a stand mixer, add the dry ingredients and give them a quick stir to combine.
1 1/2 Cup gluten free flour blend, 1/2 teaspoon xanthan gum, 3 teaspoons baking powder, 1/2 teaspoon salt, 1/3 cup sugar
Add the remaining ingredients to the bowl and mix until well combined, some lumps will remain.
1 cup gluten free sourdough discard starter, 2 eggs, 1/2 cup oil, 1 cup milk, 2 teaspoons vanilla
Set aside for 5 minutes for the gluten free flours to fully hydrate.
While the batter rests, preheat your waffle iron. You want it very hot to get crisp waffles.
Spritz some cooking oil onto the hot waffle iron
Immediately add 3/4 cup to 1 cup scoop of waffle batter to the waffle iron and close it to cook.
Let each waffle cook for about 2 minutes, or until very little steam is escaping from the waffle iron.
Open the waffle iron to check for doneness. If the waffle isn’t crisp and golden, close the lid and cook for another 30 seconds or so.