Île Flottante (Floating Island Meringue with Vanilla Custard)
Why this recipe works
- Classic French method: Poaching the meringues gently sets them without browning, keeping their recognisable floating-island lightness.
- Smooth custard base: Cooking the custard slowly and straining it gives the crème anglaise a fine, silky finish.
- Caramel balance: The light caramel adds a bittersweet edge that keeps the vanilla custard and sweet meringue from feeling flat.
Get the most out of this recipe
Authenticity notes
- Defining technique: Île flottante is defined by poached meringue served on vanilla custard, with the contrast between airy egg white and smooth crème anglaise at the centre of the dish.
- Caramel finish: A drizzle of caramel is a common finish, adding colour, shine, and a lightly bitter counterpoint to the custard.
Common mistakes
- Overheating the custard: Keep the custard over low heat and stir continuously; if it bubbles or steams heavily, remove it briefly from the heat to avoid scrambling the yolks.
- Boiling the poaching water: The meringues need a bare simmer, not a rolling boil, so they set gently without breaking apart.
- Taking the caramel too far: Remove the caramel once it turns amber; darker caramel can quickly become bitter and overpower the delicate custard.
Make-ahead tips
- Keep the parts separate: Store the custard and poached meringues separately in the fridge, covered, to preserve the best texture.
- Assemble before serving: Float the meringues on the custard only shortly before serving, as they soften once they sit in the custard.
- Serve cool if preferred: For a cooler finish, chill the assembled bowls briefly rather than leaving them to stand for a long time.
Ingredient notes
- Egg separation matters: Separate the eggs cleanly; even a little yolk in the whites can stop the meringue from whipping properly.
- Custard richness: Whole milk gives a smooth, traditional-style custard, while replacing some milk with cream makes the base richer.
- Egg safety: For vulnerable diners, use pasteurised eggs and make sure the custard reaches 82°C (180°F).
Equipment you'll need
Ingredients
Instructions
- Pour the milk into a saucepan and warm over medium heat until steaming and just starting to tremble at the edges, without boiling. Stir in the vanilla extract, then take off the heat.
- In a mixing bowl, whisk the egg yolks with 80 g of the caster sugar and the salt until slightly paler and smooth. Slowly whisk in the warm vanilla milk, then return everything to the saucepan.
- Cook the custard over low heat, stirring constantly with a whisk, until it thickens enough to lightly coat the back of a spoon, 6 to 10 minutes. Aim for 82°C (180°F) if using a thermometer, then strain into a bowl and cool for 10 minutes.
- Meanwhile, pour the water into a wide saucepan and bring to a gentle simmer. Keep it at a bare simmer so the surface only quivers.
- Whisk the egg whites to soft peaks, then gradually whisk in 40 g of the caster sugar until glossy and holding medium peaks. Using two spoons, shape 8 quenelles and lower them into the simmering water.
- Poach the meringues for 1 to 2 minutes per side, turning once, until set and slightly puffed. Lift out with a slotted spoon and drain briefly.
- Make a light caramel by heating the remaining 20 g caster sugar in a small saucepan over medium heat until melted and amber. Carefully add 2 tbsp water and swirl until smooth, then cool for 2 minutes so it thickens slightly.
- Divide the custard between serving bowls and float the poached meringues on top. Drizzle with the caramel and serve straight away, or chill for 20 minutes for a cooler finish.
Recipe notes
Tips
- Keep the custard on low heat and stir constantly; if it starts to steam heavily or bubble, take it off the heat briefly to prevent scrambling.
- For the smoothest custard, strain it after cooking to catch any tiny bits of cooked egg.
- If serving to pregnant people, young children, older adults, or anyone immunocompromised, use pasteurised eggs and ensure the custard reaches 82°C (180°F).
Substitutions
- Replace Vanilla extract with vanilla bean for a more aromatic custard.
- Replace Whole milk with milk and cream for a richer custard.
Storage
- Refrigerate up to 2 days
- Store custard and meringues separately in the fridge, covered, for best texture. Assemble just before serving; the meringues will soften as they sit on the custard.
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Recipe overview
- Servings: 4 servings
- Total time: 55min (35min active)
- Difficulty: Medium
- Cuisine: French
-
Allergens:
Eggs Milk
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