In a mixing bowl, combine glutinous rice flour, sugar, and salt until evenly distributed.

Gradually add water while stirring to form a thick, smooth batter without lumps.

Stir in vanilla extract if using for a hint of aromatic sweetness.

Pour the batter into a greased heatproof dish or pan lined with parchment paper.

Steam the batter over boiling water for about 20–25 minutes until the rice cake sets and becomes translucent and tender.

Remove the dish from the steamer and let the rice cake cool slightly.

Dust your hands and a cutting board with cornstarch or extra rice flour to prevent sticking.

Transfer the steamed rice cake onto the dusted board and cut into bite-sized pieces.

Optionally roll each piece in additional cornstarch to keep them from sticking together.

Serve warm or at room temperature with tea or your favorite dipping sauce.