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Banh Pia - Mooncake

Banh pia is an Asian sweet (similar to a moon cake) that is a fusion of Vietnamese and Chinese cuisine. It has layers of flaky pastry that encase a filling made of mung bean and chunks of candied winter melon for pops of flavour and texture.
Course Cake, Snack
Cuisine Chinese, Vietnamese
Keyword Banh Pia
Prep Time 1 hour
Cook Time 30 minutes
Total Time 1 hour 30 minutes
Servings 10
Calories 417kcal
Author Scruff

Ingredients

Outer Dough

  • 200 gm plain flour or all purpose flour
  • 70 gm warm water
  • 35 gm caster sugar
  • 45 gm canola / vegetable oil

Inner Dough

  • 150 gm plain flour or all purpose flour
  • 45 gm canola / vegetable oil

Mung Bean Filling

  • 250 gm dried mung beans
  • 3 cups water
  • 1 tsp salt
  • 200 gm sugar
  • 2 tbsp oil
  • 1/2 tsp vanilla extract / paste
  • 50 gm candied winter melon, chopped into small chunks (available at Asian groceries)

Thickener

  • 1 tsp cornflour
  • 2 tsp glutinous rice flour
  • 1 tbsp water

Egg Wash

  • 1 egg, beaten
  • 1 tsp milk
  • 1 drop yellow food colouring (optional)

Red Markings

  • red food colouring (optional)

Instructions

The Outer Dough

  • Put a medium sized mixing bowl on the kitchen scales. Measure and add the dough ingredients one at a time. The weight after adding each ingredient in the order of the recipe is 200 gm, 270 gm, 305 gm and 350 gm.
  • Use a wooden spoon to combine and then knead with your hands for 5 minutes.
  • Cover the dough with cling wrap and let it rest for at least 30 minutes at room temperature.

The Inner Dough

  • Put a mixing bowl on kitchen scales. Measure and add the dough ingredients one at a time. The weight after adding each ingredient in the order of the recipe is 150 gm and 195 gm.
  • Use a wooden spoon to combine and then knead with your hands for 5 minutes.
  • Cover the dough with cling wrap and let it rest for at least 30 minutes at room temperature.

Mung Bean Filling (Use the progress pictures for help)

  • In a pot on medium heat, add the mung bean, water and salt. Cook for roughly 30 minutes or until the mung bean becomes soft. Be sure to stir the mung bean to avoid burning once most of the moisture has been absorbed or evaporated.
  • Add the sugar to the mung bean and use a stick blender / food processor to blitz until smooth.
  • Heat a non-stick pan over medium-low heat and add the mung bean puree. Cook and continuously stir for 10 minutes.
  • In a small bowl, make the thickener by combining the cornflour, glutinous flour and water.
  • Add the thickener to the mung bean one third at a time. After each time stir until completely mixed through before adding more.
  • Add the oil and cook for roughly another 10 - 15 minutes or until the mixture combines and becomes nearly thick like play dough but a bit softer.
  • Once done, take off the heat and stir through the vanilla and chopped candied winter melon. Allow to cool.
  • Once cool enough to handle, roll the mung bean filling into balls of roughly 80 gm each. Put it in fridge covered until needed.

Making the Cakes (Use the progress pictures for help)

  • Weigh the outer dough and divide it into 10 equal portions. They should be roughly be 35 gm each. Keep the dough covered with a tea towel to avoid them drying out.
  • Repeat with the inner dough. They should be roughly 19 gm each.
  • Please refer to the pictures and instructions above to wrap the moon cakes.
  • Preheat the oven to 200 C / 392 F fan forced.
  • Line a baking tray with baking paper and bake the cakes for 15 minutes upside down at 200 C / 392 F fan forced.
  • Take the cakes out and flip them over. Brush the egg wash over top of the cakes.
  • Bake the cakes for another 5 minutes at 200 C / 392 F fan forced.
  • Take them out and let them cool on a rack.
  • Store them in the fridge uncovered for 1 -2 days before eating.

Nutrition

Calories: 417kcal | Carbohydrates: 66g | Protein: 10g | Fat: 13g | Saturated Fat: 1g | Cholesterol: 16mg | Sodium: 248mg | Potassium: 355mg | Fiber: 5g | Sugar: 25g | Vitamin A: 52IU | Vitamin C: 1mg | Calcium: 43mg | Iron: 3mg