Prepare all the ingredients. Measure out the butter, sugar, flour, and eggs, and chop the chocolate.
Separate the eggs, placing the egg whites in a clean bowl. In another bowl, combine the egg yolks with the sugar and vanilla sugar.
Pour the white wine and milk into a saucepan and heat over medium heat. Do not let the mixture boil; just warm it gently.
Place the chocolate and butter in a small bowl and melt over a double boiler (bain-marie). Once the chocolate has melted, pour it into the egg yolk mixture and mix well.
Whisk the egg whites until stiff peaks form. Gently fold the beaten egg whites into the chocolate mixture.
Sift the flour and gradually add it to the chocolate mixture. Mix until just combined.
Grease a soufflé dish with butter, then pour in the chocolate mixture. Bake in a preheated oven at 350°F (180°C) for 20-25 minutes.
Once baked, let it cool slightly, then serve warm, perhaps with whipped cream or a scoop of vanilla ice cream.
To provide the best experiences, we and our partners use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us and our partners to process personal data such as browsing behavior or unique IDs on this site and show (non-) personalized ads. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Click below to consent to the above or make granular choices. Your choices will be applied to this site only. You can change your settings at any time, including withdrawing your consent, by using the toggles on the Cookie Policy, or by clicking on the manage consent button at the bottom of the screen.