Raindrop Cake (Mizu Shingen Mochi)

Nov 3, 2026 · By VanillaGoods

Dessert Custards puddings creams Medium

A clear, quivering dome of lightly set water, nearly flavorless on its own. It is eaten with toasty soybean flour and a dark brown sugar syrup. Makes 4 domes in about 3 hr 45 min.

Prep 15 min

Cook 30 min

Cooling 3 hr

Total 3 hr 45 min

Yield 4 domes

Diet Dairy free, Vegan

Ingredients

Adjust yield

domes

4 ¼ cups (1000 ml)still mineral water, low mineral content
1 ½ tsp (3 g)agar powder
½ cup (100 g)dark brown sugar
¼ cup (60 ml)water
1 pinchfine sea salt
2 ½ tbsp (20 g)kinako (roasted soybean flour)

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Instructions

Rinse four 250 ml hemisphere molds with cold water and set them on a tray.
Whisk the agar into the cold mineral water in a saucepan and let it sit for 5 minutes.
Heat over medium, stirring gently, to a boil and simmer for 2 minutes until the agar is fully dissolved. Skim any foam.
Ladle the hot liquid slowly into the molds, avoiding bubbles. Cool 20 minutes at room temperature.
Refrigerate for 3 hours until fully set but still very soft.
For the syrup, simmer the brown sugar, water and salt for 5 minutes until lightly syrupy, then cool completely.
Release each dome onto a plate by loosening the edge with a fingertip, and serve within 20 to 30 minutes with kinako and syrup on the side.

Tips

Agar sold in the US sets cloudier and firmer than Japanese kanten; use a very small dose and still water for clarity.
Keep the dome cold until the moment of serving; at room temperature it weeps and slumps.
Add kinako at the table, because it dissolves into the jelly if added early.
Good with green tea.

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Recipe FAQ

How long does it take to make raindrop cake (mizu shingen mochi)?

Plan on 15 minutes of prep and 30 minutes of cooking, plus 3 hours to chill. The recipe makes 4 domes.

How should I store raindrop cake (mizu shingen mochi)?

Best eaten within hours; refrigerate covered in the molds for up to 1 day.

Can I make raindrop cake (mizu shingen mochi) ahead?

Yes. It needs time to chill and set, so it is a good one to make the day before you serve it.

Is this recipe vegan?

Yes, as written. Check that packaged ingredients such as chocolate, sprinkles and plant butter are labeled vegan.

Created in 2014 by the Kinseiken confectionery in Yamanashi to show off local mineral water, and traditionally served with roasted soybean flour and dark sugar syrup. Serve it with green tea.

Estimated · per serving

Nutrition

Per serving = 1 of 4 servings this recipe makes.

118 Calories / serving

1.2g Fat

25.9g Carbs

1.9g Protein

24.6g Sugar

Whole recipe (4 servings): ~472 cal · 5g fat · 104g carbs · 8g protein · 98g sugar

Estimated values per serving, calculated from standard ingredient data. Not verified Nutrition Facts; actual values vary with brands, measurements, and preparation.