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Kue lumpur
Potato coconut custard cakes
Kue lumpur: Jakarta's soft potato and coconut custard cakes topped with raisins
The name means 'mud cake', a joke about the batter, which is almost liquid when it goes into the moulds. Betawi bakers in Jakarta make kue lumpur for arisan afternoons and Ramadan iftar boxes: mashed potato, coconut milk, eggs and a little flour bake into tender, custardy rounds with a single raisin or a slice of young coconut on top. They are best on the day, slightly warm. Chef's tip: don't overfill the moulds or open the oven early; the centres sink and stay wet if the heat drops before they set.
- Total time
- 60 min
- Difficulty
- medium
- Serves
- 8
Ingredients
- 9 oz floury potatoespeeled, steamed and mashed smooth
- 3 eggs
- 4 oz sugar
- 3 ½ oz plain flour
- 1 ¾ cups coconut milk
- 1 ⅜ oz buttermelted, plus extra for the moulds
- 1 tsp vanilla extract
- ¼ tsp salt
- 1 oz raisins
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Method
0/7 doneStep 1: Heat the oven to 350°F (325°F fan) and brush a 12-hole mini muffin tin, or kue lumpur moulds, generously with butter.
Step 3: Beat in 9 oz floury potatoes, then sift in 3 ½ oz plain flour and mix until smooth.
Step 4: Gradually whisk in 1 ¾ cups coconut milk, 1 ⅜ oz butter, 1 tsp vanilla extract and ¼ tsp salt to make a thin, pourable batter. Strain it if there are lumps.
Step 5: Pour into the moulds until three-quarters full and bake until the edges are set and the centres just wobble.
15 minStep 6: Drop a couple of 1 oz raisins on each and bake again until the tops are pale gold and a cocktail stick comes out clean.
15 minStep 7: Cool in the tin for 10 minutes before easing out with a small spatula; they are fragile while hot.
Nutrition per serving
- Calories
- 270 kcal
- Protein
- 5 g
- Carbs
- 33 g
- Fat
- 14 g
- Fibre
- 1 g
Nutrition values are estimates.
KrazyBadal
Good to know
- How long does kue lumpur take?
- About 60 minutes in total: 25 minutes to prepare and 35 minutes to cook.
- How many people does it serve?
- 8 as written. Change the servings above the ingredients and every amount scales to match.
- Is it vegetarian?
- Yes. It has no meat or fish.
- What can I use instead of floury potatoes?
- Sweet potato, same weight (sweeter, cooks a little faster).
- What can I use instead of eggs?
- 1 tbsp ground flaxseed + 3 tbsp water per egg, left for 5 minutes (baking only; vegan).
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