Name: Passion-fruit kefir mousse
Prep time: 10 min
Total time: 190 min
Ingredients: 125 ml passion-fruit juice (From about 6–8 fresh passion fruit; strain before measuring and do not dilute with water.); 200 ml plain milk kefir (Unsweetened.); 200 ml heavy cream (Unsweetened liquid cream; no need to whip.); 75 ml plain water (For blending the mousse base.); 5 tbsp granulated sugar (Fine sugar dissolves fully in the cold blend.); 12 g unflavoured gelatin powder (Unsweetened and unflavoured.); 5 tbsp plain cold water (For soaking the gelatin; measure separately from the mousse water.)

By Nik, founder of 東歐嚴選｜kefir.link and former chef · Updated 2 November 2026

Passion-fruit mousse is a popular Brazilian dessert: cold, creamy, sweet and a little tangy. The usual base is passion fruit, cream and sweetened condensed milk, but here milk kefir and sugar take the condensed milk's place. Kefir's natural acids give it a rich tang that suits the fruit, and gelatin sets the mousse without eggs or an oven.

Prep time10 min

Total time3 h 10 min

Makes4 servings

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A 1960s favourite, served in small glasses

Recipes for passion-fruit mousse go back to at least 1962, and the dessert is linked to both Brazil and Madeira. In Brazil, cooking classes that promoted condensed milk put it into many desserts, mousse included, which made the local version thicker and less airy than a classic mousse. Brazilians serve it cold, in one large bowl for sharing or in small glasses, often as a small portion after a meal or with coffee. A spoonful of sauce made from passion-fruit pulp, seeds and sugar is a common topping.

Why the gelatin needs patience

As gelatin cools, its molecules link into a net that holds water, and that net turns the liquid base into a mousse you can spoon. Dry gelatin sprinkled straight into a mixture clumps and stays grainy, so it is soaked in cold water first and then melted gently, because boiling ruins its setting power. Hot gelatin poured into a cold base can also form lumps, so it needs to cool a little first. Too much gelatin makes the mousse rubbery, and agar or kanten are poor swaps because they begin to set at room temperature. If the mousse is still soft after chilling, blend in another portion of soaked, melted gelatin and chill it again.

Heavy fruit means more pulp

Choose passion fruit with bright skin and compare a few in your hand, because heavier fruit holds more pulp and very light fruit may be hollow. Wrinkled skin does not mean poor quality. Pulse the pulp only briefly in the blender, then press it through a fine sieve with a spoon to separate the juice from the seeds. The seeds are edible and nearly tasteless, so a few make a simple garnish.