Steam Oven Thai Steamed Purple Potato Cake
Khanom Mun Maung (Steam Oven Steamed Purple Potato Cake)
This recipe yields approximately 8-10 servings.
Ingredients:
- 500g (about 2 cups) peeled and cubed purple sweet potato
- 1 cup (240ml) thick coconut milk
- ¾ cup (150g) granulated sugar (adjust to your sweetness preference)
- ½ cup (70g) rice flour
- ¼ cup (30g) tapioca starch
- ½ teaspoon salt
- 1 teaspoon vanilla extract (optional)
- ¼ cup shredded coconut, for garnish
Equipment:
- Steam oven
- Blender or food processor
- Mixing bowl
- Steamer-safe dish or individual ramekins
- Measuring cups and spoons
Instructions:
- Prepare the Purple Sweet Potato:
- Steam the cubed purple sweet potato in your steam oven at 100°C (212°F) for 15-20 minutes, or until it's very tender and easily mashed with a fork.
- Once cooked, mash the sweet potato thoroughly with a fork or blend it in a blender or food processor until smooth. Let it cool slightly.
- Make the Cake Batter:
- In a large mixing bowl, combine the mashed purple sweet potato, coconut milk, sugar, rice flour, tapioca starch, salt, and vanilla extract (if using).
- Whisk all the ingredients together until you have a smooth and lump-free batter. Ensure there are no dry pockets of flour or starch.
- Prepare for Steaming:
- Lightly grease your steamer-safe dish or individual ramekins with a little oil. This will prevent the cake from sticking.
- Pour the purple sweet potato batter into the prepared dish or divide it evenly among the ramekins.
- Steam the Cake:
- Preheat your steam oven to 100°C (212°F).
- Place the dish or ramekins into the steam oven.
- Steam for 25-35 minutes for a large dish, or 20-25 minutes for individual ramekins, or until a toothpick inserted into the centre comes out clean. The cake should be set and slightly firm to the touch.
- Finish and Serve:
- Once the cake is cooked, carefully remove it from the steam oven.
- Garnish with shredded coconut.
- Let the cake cool slightly before slicing and serving. Khanom Mun Maung can be enjoyed warm or at room temperature.
Tips for Success:
- Purple Sweet Potato Variety: Look for vibrant purple sweet potatoes for the best colour and flavour.
- Coconut Milk Quality: Use good quality, full-fat coconut milk for a richer and more flavourful cake.
- Smooth Batter: Ensure your batter is completely smooth to avoid any grainy texture in the final cake.
- Steaming Time: Steaming time may vary slightly depending on your steam oven and the size of your dish or ramekins. Keep an eye on the cake and test for doneness with a toothpick.
- Don't Over-Steam: Over-steaming can result in a rubbery texture. The cake is done when it's set and a toothpick comes out clean.
- Cooling: Allow the cake to cool slightly before serving as it will be easier to handle and the flavours will meld together.
- Variations: You can add other ingredients to the batter for extra flavour, such as a pandan extract for a floral note or a sprinkle of chopped nuts for added texture.
- Storage: Leftover Khanom Mun Maung can be stored in an airtight container in the refrigerator for up to 3-4 days. You can gently steam it again to warm it up before serving.
Enjoy making and savouring this delicious Thai steamed purple sweet potato cake in your steam oven!
