Vietnamese Black Bean Cake (Bánh Đậu Đen)

Vietnamese Black Bean Cake (Bánh Đậu Đen)

Ingredients

• 200 g dried black beans
• 120–150 g sugar (adjust to taste)
• 100 ml coconut milk
• 1/2 tsp salt
• 2–3 tbsp vegetable oil (or coconut oil)
• 1 tsp vanilla extract (optional)
• Toasted sesame seeds (optional, for garnish)

Preparation

1. Prepare the beans

Rinse the black beans thoroughly, then soak them in water for at least 6–8 hours or overnight. This softens them and reduces cooking time.

2. Cook the beans

Drain the soaked beans and place them in a pot with fresh water. Simmer for about 30–40 minutes until the beans are very soft. Drain again, reserving a little cooking liquid.

3. Blend into a paste

Transfer the cooked beans into a blender or food processor. Add a small amount of the reserved liquid and blend until smooth. You’re aiming for a thick, creamy paste.

4. Cook the paste

Move the bean paste into a nonstick pan over medium-low heat. Add sugar, coconut milk, salt, and oil. Stir continuously.

This is the key stage:

• Cook slowly for 15–25 minutes
• Stir constantly to prevent sticking
• The mixture will thicken and become glossy

You’ll know it’s ready when it pulls away from the pan and holds its shape.

5. Flavor and shape

Remove from heat and stir in vanilla (if using). Let it cool slightly, then shape:

• Press into a lined tray and cut into squares, or
• Roll into small cakes/discs by hand, or
• Use molds for decorative shapes (common in commercial versions)

6. Garnish

Sprinkle with toasted sesame seeds if desired.

Texture & Flavor Notes

This style of bánh đậu đen should be:

• Smooth and slightly dense
• Mildly sweet (not overpowering)
• Fragrant with coconut
• Soft but sliceable

If you’re trying to mimic a premium or branded version like “Rồng Vàng Minh Ngọc,” they often:

• Refine the paste extra smooth (sometimes sieved)
• Use precise molds for a polished look
• Balance sweetness very carefully
• Occasionally add lotus seed paste or pandan for variation

Optional Enhancements

To get closer to a “luxury confection” feel:

• Sieve the bean paste after blending for ultra-smooth texture
• Replace part of the sugar with malt syrup for a softer bite
• Add a thin outer layer of coconut jelly or agar for contrast
• Shape into small, uniform bite-sized pieces like gift sweets