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French soufflé rising tall above a white ramekin

French Soufflé: Why It Rises, Why It Falls, and a Foolproof Vanilla Soufflé Recipe

A French soufflé rises tall and golden in the oven, and then it starts to sink within minutes. That is normal, because a soufflé is mostly hot air trapped in egg whites. However, a soufflé that barely rises, or collapses before it reaches the table, usually has a clear cause.

This guide explains why soufflés rise and fall, and how to fix each problem. After that, you will find a foolproof vanilla soufflé recipe.

Why Does a French Soufflé Rise?

Whipped egg whites hold millions of tiny air bubbles. In the oven, the heat makes the air expand, and the water in the batter turns to steam. As a result, the soufflé puffs up. At the same time, the egg proteins set around the bubbles and hold the shape.

Why Does a French Soufflé Fall?

As soon as the soufflé leaves the oven, the air and steam cool and shrink. Therefore, every soufflé sinks a little after 3–5 minutes. In other words, a slow fall is normal, while a fast collapse means something went wrong.

Common Problems and How to Fix Them

The soufflé did not rise

Cause: This usually happens because the egg whites were under-whipped, or fat got into them.

Fix: Use a clean, grease-free bowl, and whip the whites to firm, glossy peaks. Also, a pinch of cream of tartar or lemon juice makes the foam more stable.

The soufflé collapsed quickly

Cause: It was underbaked, so the center was still too wet to hold its shape.

Fix: Bake until the top is golden and the soufflé wobbles only slightly in the center.

Uneven rising

Cause: The batter stuck to one side of the ramekin.

Fix: Brush the ramekins with soft butter in upward strokes and coat them with sugar. Then run your thumb around the inside rim, so the soufflé rises straight.

Over-whipped egg whites

Cause: Dry, grainy whites break into lumps and lose air when folded.

Fix: Stop whipping when the peaks are firm but still shiny. If they turn grainy, whisk in a spoonful of fresh egg white.

Heavy folding

Cause: Stirring knocks out the air.

Fix: First, stir a quarter of the whites into the base to loosen it. Then fold in the rest gently with a large spatula.

Foolproof Vanilla French Soufflé Recipe

Ingredients

  • Soft butter and sugar, for the ramekins
  • 250 ml (1 cup) whole milk
  • 3 egg yolks
  • 50 g (¼ cup) sugar
  • 20 g (2 tablespoons) cornstarch
  • 1 teaspoon vanilla extract
  • 4 egg whites
  • Pinch of cream of tartar
  • 30 g (2½ tablespoons) sugar, for the whites
  • Powdered sugar, for dusting

How to make the soufflés

  1. Prepare the ramekins. First, heat the oven to 200°C (400°F) with a tray inside. Brush four ramekins with butter in upward strokes and coat them with sugar.
  2. Make the base. Next, heat the milk. Whisk the yolks, sugar and cornstarch, then whisk in the hot milk. Return it to the pan and stir until thick. Finally, stir in the vanilla and let it cool slightly.
  3. Whip the whites. Then whip the egg whites with the cream of tartar until foamy. Add the sugar gradually and whip to firm, glossy peaks.
  4. Fold. After that, stir a quarter of the whites into the base, and gently fold in the rest.
  5. Fill. Fill the ramekins to the top, level them with a knife, and run your thumb around the rim.
  6. Bake. Place them on the hot tray and bake for 12–15 minutes, until tall and golden.
  7. Serve. Dust with powdered sugar and serve immediately.

Tips for a Tall French Soufflé

  • Use room-temperature egg whites, because they whip to a larger volume.
  • Keep the oven door closed; otherwise, cold air makes the soufflé sink.
  • Have your guests seated before the soufflé leaves the oven.

French Soufflé Variations

  • Chocolate soufflé: stir 60 g of melted dark chocolate into the warm base.
  • Orange soufflé: add orange zest and 1 tablespoon of orange juice.
  • Molten alternative: for a richer dessert, try our chocolate fondant recipe.

Storage Tips

Soufflés must be eaten right away. However, you can make the base up to 1 day ahead and keep it covered in the fridge. Then warm it slightly before folding in fresh whites.

A Little Background

The soufflé was developed by French cooks in the 1700s, and the name comes from the French word for “to puff up.” Later, the chef Marie-Antoine Carême made it famous. You can read more about the soufflé on Wikipedia.

French Soufflé FAQ

Can I prepare soufflés ahead?

Yes. Fill the ramekins and freeze them, then bake from frozen with 5 extra minutes.

Why is my soufflé eggy?

It was overbaked. Therefore, take it out while the center still wobbles slightly.

Do I need a soufflé dish?

No. Any straight-sided ramekin works well.

For more baking fixes, read our guides to sponge cake mistakes and over-whipped cream.

Looking for more ideas? If you found this guide to the French soufflé useful, you might like our digital cookbook, which brings together 31 Eastern and Western sweets with precise measurements.

Wissam Sabalbal

Wissam Sabalbal is the founder of Noor Al Oyoun and the author of the digital cookbook 31 Delicious Homemade Dessert Recipes. On this blog, Wissam shares Eastern and Western dessert recipes with exact measurements, plus practical fixes for the problems home bakers run into most often.