Whisk the base: Whisk the flour, water, and salt together for 2 minutes (or 1 minute on speed 5 with an electric mixer) to develop the gluten.
Activate & combine: Dissolve the yeast in 1 tbsp of warm water. Add it to the bowl along with the sugar and baking powder, then whisk for another 30 seconds.
The Proof: Cover the bowl and leave it in a warm place for 30 minutes to an hour until the surface is beautifully foamy.