The apple and yogurt flan is one of those desserts that circulates from Facebook group to Pinterest board without always finding the exact source. Associated with the name Cyril Lignac, this recipe charms with its simplicity and its texture that lies somewhere between a melting cake and a custard flan. Few ingredients, one bowl, and an oven bake: the result is more reminiscent of home cooking than technical pastry.
Yogurt in an apple flan: what it changes in texture
Adding yogurt to a flan mixture changes two things. First, the yogurt brings a light acidity that enhances the flavor of the apples without needing lemon. Secondly, the fat and whey proteins create a softness that the classic flan recipe (eggs, milk, sugar) does not achieve on its own.
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The result is not a firm and wobbly flan, but rather a dense and melting dessert. The texture is similar to that of a clafoutis, with a creamier chew thanks to the yogurt.
Have you noticed that a yogurt cake stays moist even the next day? The same principle applies here. The flan holds its shape after a night in the refrigerator, making it a dessert that can be prepared the day before.
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A standard plain yogurt works perfectly. Greek yogurt, which is thicker, gives a slightly more compact result. Both work, but a standard plain yogurt offers the best balance between melting and lightness. Avoid low-fat yogurts: the lack of fat dries out the batter.
This approach, popularized notably by the apple and yogurt flan according to Cyril Lignac, is based on a practical measuring principle: the yogurt pot serves as a measuring cup for the flour, sugar, and oil.
Apple and yogurt flan: the ingredients and proportions
The list remains short, which explains the success of this easy recipe. Each ingredient has a specific role, and substitutions change the final result.
- One plain yogurt (the pot will serve as a measuring unit for the rest)
- Two pots of flour, one and a half pots of sugar, half a pot of neutral oil (sunflower or canola)
- Three whole eggs, one packet of baking powder
- Three to four apples depending on size (Golden, Gala, or Reine des reinettes for good cooking results)
- A dash of liquid vanilla or ground cinnamon according to your preferences
Why these varieties of apples? Soft-fleshed apples hold up better during cooking and do not release too much water into the mixture. A Granny Smith, which is too acidic and firm, would alter the texture.
Cinnamon or vanilla: choose according to the season
Vanilla gives a sweeter flan, more “Sunday cake.” Cinnamon adds warmth and works better in autumn or winter. Combining the two is tempting but muddles the flavors. It’s better to choose one.
Step-by-step preparation of the apple flan
The principle consists of three phases. No need for a stand mixer or a double boiler.
Prepare the yogurt mixture
Pour the yogurt into a mixing bowl. Add the eggs one by one, whisking each time. Incorporate the sugar, then the oil. Mix the flour and baking powder separately before adding them to avoid lumps. The batter should be smooth and fluid, more liquid than a classic yogurt cake.
The dash of vanilla (or cinnamon) is added at this stage. Mix with a spoon, not a whisk, to avoid overworking the batter.
Prepare the apples and assemble
Peel the apples, remove the core, and cut them into thin slices (three to four millimeters). Slices that are too thick remain crunchy in the center, which disrupts the uniformity of the flan.
Butter a springform pan. Place a layer of apple slices at the bottom, pour in half of the mixture. Add the remaining apples, then cover with the rest of the batter. This two-layer arrangement distributes the fruit throughout the thickness of the flan.
Baking in the oven and checking
Place in a preheated oven at moderate heat. Baking takes between thirty-five and forty-five minutes depending on the oven. The flan is ready when the surface is golden and a knife inserted in the center comes out barely moist.
Let cool for at least twenty minutes before unmolding. The flan firms up as it cools. Unmolding too quickly results in a dessert that collapses on the plate.
Common mistakes with apple-yogurt flan
This dessert forgives a lot, but some pitfalls often recur for those making it for the first time.
Too much sugar masks the flavor of the apples. If your fruits are already well-ripened and sweet, reduce the amount of sugar in the mixture. Taste a slice of raw apple before measuring: it’s the best indicator.
An oven that is too hot browns the surface before the center is cooked. If your oven heats strongly, lower the temperature slightly and extend the baking time by a few minutes.
Finally, the pan matters. A metal pan conducts heat better than a silicone pan. Silicone gives a paler flan, with a less pronounced crust. For a golden result with slightly caramelized edges, a buttered metal springform pan remains the most reliable choice.
The apple and yogurt flan keeps for two to three days in the refrigerator, covered with plastic wrap. It can be eaten cold or warmed for a few seconds in the microwave. Cold, the texture is firmer and resembles a true flan. Warm, the softness takes over and the apple flavors stand out more.