Steamed banana cake (banh chuoi hap 2)

Ingredients

• 1 1/2 cup tapioca starch
• 1 cup rice flour
• 2 cups water
• 1/3 cup + 1 tablespoon sugar
• 1/2 teaspoon salt
• 6 bananas
• yellow food color

Coconut Dip:

• 1 can 560 ml coconut cream
• 1/2 cup water
• 2 tablespoons cornstarch
• 4 1/2 tablespoons sugar
• 1 teaspoon salt