Fluffy brown sugar fa gao that splits into a bloom symbolizes prosperity. A family dessert with rich, caramelized sweetness and festive meaning.
Combine cake flour and salt in a mixing bowl, blending with a whisk for even distribution.
Heat water and brown sugar together over medium heat, stirring until fully dissolved, then let cool slightly to lukewarm.
Pour brown sugar syrup into the flour mixture, then add vegetable oil; mix with a spatula until just combined—do not overwork.
Sift in baking powder last, folding gently but thoroughly for an airy, foamy batter; let rest 10 minutes uncovered.
Pour batter into lined cupcake molds, filling 80% full, and steam over high heat for 18 minutes, making sure to keep steam strong—do not open the lid mid-steam for signature bloom.
Turn off heat and rest 3 minutes before removing from steamer; serve warm for best fluffy texture.