
Walnut soufflés that crackle with the first bite
Delicate meringue, crunchy walnuts and plenty of air
Hello fellow foodies,
do you know those little cookies that look like clouds and softly crackle at the first bite? Wafer-thin and crisp on the outside, tender and airy on the inside, with crunchy walnut pieces scattered throughout. In French-speaking Switzerland they are called soufflés aux noix, and with us they are lovingly known as walnut clouds. On our Christmas plate they are always the first to go!
The secret is an Italian meringue: instead of simply sprinkling all the sugar into the egg whites, you cook part of it into a syrup and let it run hot into the whipped egg whites. This makes the mixture wonderfully stable and glossy, and the clouds don't collapse in the oven. Sounds complicated? It isn't! With a sugar thermometer you'll succeed for sure.
And the best part: the walnut clouds need no flour and no butter, and are naturally gluten-free. This recipe makes 35 pieces. Happy baking!



Ingredients
For the sugar syrup
For folding in
Step by Step
The meringue mixture
Get everything ready
Preheat the oven to 180 °C top and bottom heat and line a baking tray with baking paper. Chop the walnuts coarsely; the pieces can be a little larger, as they will later provide the crunchy walnut experience. Weigh the crystal sugar into two portions: 45 g go into the egg white, 110 g into the syrup. Also get the sugar thermometer ready, because once the syrup starts to boil, things need to move quickly.

Whisk the egg white until stiff
Put the egg white into a clean, grease-free bowl and whisk it to a foam with the hand mixer or in the food processor. Then gradually sprinkle in the first portion of crystal sugar and keep mixing until the meringue is nice and stiff and glossy. Our test: when you lift the whisks out, firm peaks should stay standing.



Boil the sugar syrup to 120 °C
Put the water and the second portion of crystal sugar into a small pan and bring everything to the boil. Insert the sugar thermometer and let the syrup boil until it reaches exactly 120 °C. Do not stir, otherwise the sugar may crystallise. The temperature really matters here: if the syrup is too cool, the mixture will be soft; if it is too hot, it turns into caramel.

Pour in the hot syrup
Let the mixer run on a low speed and pour the hot syrup in a fine stream along the edge of the bowl into the egg whites. It is best not to pour it directly onto the whisk, otherwise the syrup splashes onto the side of the bowl and hardens there. Keep beating until all the syrup is well incorporated and the mixture is thick, glossy and snow-white.

Fold in the nuts and bake
Mix the nuts with icing sugar and fold them in
Mix the coarsely chopped walnuts with the icing sugar in a small bowl. The icing sugar coats the nut pieces, so they distribute evenly and do not sink. Add the mixture to the meringue mixture and gently fold everything in with a rubber scraper, pulling from the bottom up. Don't stir, just fold! This keeps all the air in the mixture, and your little clouds will be wonderfully light.


Portion out with two teaspoons
Use one teaspoon to scoop a small mound of mixture and push it onto the baking paper with the second spoon. Leave about 3 cm between the mounds. The shape doesn't have to be perfect, quite the opposite: the small peaks and tips are what make the walnut clouds so pretty, and they turn wonderfully crisp in the oven.



Bake and let cool
Bake the walnut clouds for 8 to 10 minutes in the middle of the oven. They should stay pale and only turn very lightly beige. Then let them cool completely on the tray. While still warm they are soft; only as they cool do they become crisp on the outside and release easily from the baking paper.

Walnut soufflés
Ingredients
For the egg white
For the sugar syrup
For folding in
Preparation
- Egg white: Whip the egg white with 45 g granulated sugar until stiff and glossy.
- Syrup: Boil the water and 110 g granulated sugar to exactly 120 °C and pour in a fine stream while stirring constantly.
- Mixture: Mix the roughly chopped walnuts with the icing sugar and gently fold in with the rubber scraper.
- Baking: Place on the tray with two teaspoons and bake light at 180 °C top/bottom heat for 8 to 10 min.
Nutritional values per 100 g
Storage & shelf life
Everything for this recipe
Recommended by our bakery, in exactly the sizes this recipe has been tested with.
Ingredients
Accessories
Delivery in 1 to 2 working days · Free shipping from CHF 100

That's how you get it right, every time
With sugar syrup, every degree counts. With a sugar thermometer you hit exactly 120 °C, and your meringue turns out stable and glossy every time.
Even a trace of fat or a drop of egg yolk will stop the egg white from whipping up stiff. Wipe the bowl and the whisk beaters with a little lemon juice beforehand, and it will work reliably.
Toast the chopped walnuts for a few minutes in a dry pan beforehand, until they smell fragrant. But let them cool completely before folding them into the mixture.
Frequently asked questions
The hot syrup gently cooks the egg white. This so-called Italian meringue is much more stable than ordinary beaten egg white, doesn't collapse when the nuts are folded in, and keeps its airy shape in the oven.
Yes, absolutely! Hazelnuts, almonds or pecans work just as well. The only important thing is to chop them coarsely so that you can nicely feel the pieces.
Meringue attracts moisture. Let the clouds cool completely and store them in an airtight tin, separate from soft biscuits. If they still become a little soft, you can dry them out again at 100 °C for a few minutes.
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