Preheat steamer while you prepare.
Line a six-inch round bamboo basket with parchment paper.
In large bowl, sift together
All-Purpose Flour (1 1/3 cups)
Cake Flour (1 1/4 cups)
Baking Powder (1 Tbsp)
Salt (1/4 tsp)
In your mixing bowl, whisk
Caster Sugar (1 cup)
Cake Stabilizer (1 tsp)
together on high speed for ten minutes.
Mix until pale and fluffy.
Turn your mixer down to low and drizzle
Vanilla Extract (1 tsp)
Water (6 oz)
Lastly, gradually fold in dry ingredients.
Transfer into your lined basket, and gently drop the pan against the worktop to get large air bubbles out.
Place it in the steamer for thirty five to forty minutes over rapidly boiling water.
Let it cool for 20 minutes before serving.