Introduction
Creating a perfect soufflé can be a daunting task for many home cooks, but with the right ingredients and careful preparation, it becomes an achievable culinary delight. The soufflé relies on a few key components, each playing a role in achieving that light, airy texture and rich flavor. Below, we will break down the essential ingredients you will need to make a delightful cheese soufflé.
Detailed Ingredients with measures
2 cups full-fat milk, but works with lite milk too
75 g (5 tbsp) unsalted butter
1/2 cup plain flour (all-purpose)
1/2 tsp cooking salt / kosher salt (halve for table salt, + 50% for flakes)
2 pinches ground white pepper (substitute black pepper)
150 g (1 1/2 cups) Gruyère cheese, shredded using a standard box grater (tightly packed if using cups)
3 egg yolks from large eggs (55 g/2 oz each in shell), at room temperature
4 egg whites from large eggs, at room temperature (total egg whites ~ 120 g/4.2 oz)
1/2 tsp cream of tartar, sifted if lumpy
15 g (1 tbsp) unsalted butter, melted (to grease the ramekins)
Prep Time
20 minutes
Cook Time, Total Time, Yield
Cook Time: 20 minutes
Total Time: 40 minutes
Yield: Serves 4
Detailed Directions and Instructions
Preparation
Preheat your oven to 200°C / 400°F (180°C fan-forced). A properly hot oven is crucial; it’s what gives the soufflé its famous lift. A cold oven will result in a disappointing soufflé.
Prepare the ramekins by brushing the insides of 4 (325ml / 1 1/3 cups) ramekins generously with the melted butter. Make sure to use all the butter. There’s no need to brush upwards; just coat the sides. Set the greased ramekins on a baking tray.
Make Mornay Sauce (Cheese Sauce)
Heat the milk in a small saucepan over medium heat until it is steaming but not boiling. Once hot, set it aside.
In a large saucepan, melt the unsalted butter over medium heat. Once melted, add the plain flour and whisk gently. Initially, the mixture will be thick and pasty, resembling wet sand. Cook, while whisking constantly, for about 2 minutes until the mixture becomes smooth and glossy. Make sure to whisk into the corners and avoid browning the roux. If it’s getting too hot, reduce the heat.
Add a third of the warmed milk to the roux while whisking vigorously. It will thicken quickly. Next, add half of the remaining milk and whisk until smooth. Finally, pour in the rest of the milk along with the cooking salt and ground white pepper. Continue whisking for 30 seconds to a minute until the mixture thickens and becomes smooth. It should be thick enough to draw a path with a spatula that holds its shape momentarily before sinking back.
Turn off the heat and whisk in the egg yolks one at a time until fully combined. Do not worry; the egg yolks will not cook at this stage. Turn the heat back on to medium and whisk in the grated Gruyère cheese until fully melted. Scrape down the sides of the saucepan and cover it with a lid. Set the Mornay sauce aside.
Folding in the Egg Whites and Baking
In a large bowl, add the egg whites and the cream of tartar. Using a hand mixer or a stand mixer fitted with a whisk attachment, beat the egg whites on medium speed for 2 minutes, then increase to high speed for an additional 30 seconds until firm peaks form. It’s important to start slow to help the protein structure develop properly.
Give the Mornay sauce a quick whisk to ensure it’s smooth. Add a quarter of the beaten egg whites and whisk it in to loosen the mixture. Then, gently fold in a third of the remaining egg whites using a rubber spatula until mostly incorporated. Use slow, sweeping motions from the bottom of the pot to keep as much air in the mixture as possible. Repeat this process two more times with the rest of the egg whites.
Pour the mixture evenly into the prepared ramekins using a ladle or large serving spoon, filling each to about 1cm / 0.4” below the rim. Smooth the tops with the back of a teaspoon that has been dipped in water. Additionally, run your thumb around the inside rim of each ramekin to clean it; this creates a clean edge for the soufflé to rise against.
Place the ramekins on the baking tray and bake for 20 minutes or until they are tall and golden. Do not open the oven door while they bake; a sudden temperature drop will cause them to sink. The soufflés should jiggle slightly when you shake the ramekin once they are done.
Serve immediately
As soon as you take them out of the oven, serve the soufflés right away. They do not wait; ensure all your family or guests are seated to enjoy the show.
Notes
Note 1: Take care to ensure that the eggs are at room temperature; this helps with better incorporation.
Note 2: Gruyère cheese provides a distinct flavor, but you may substitute it with other cheeses such as Emmental or a strong cheddar for variation.
Note 3: The cream of tartar stabilizes the egg whites when beaten; sift if lumpy to ensure proper incorporation.
Note 4: Ensure the ramekins are generously buttered to help the soufflé rise evenly.

Cook Techniques
Melt Butter
Melt unsalted butter over medium heat until fully liquefied. This is the base for the roux.
Make a Roux
Whisk together melted butter and flour in a saucepan, cooking for about 2 minutes until smooth and glossy without browning.
Heat Milk
Warm full-fat or lite milk in another saucepan until steaming, but do not boil it.
Make Béchamel Sauce
Slowly whisk hot milk into the roux to create a thick sauce. Continue adding remaining milk, salt, and pepper until smooth.
Prepare Mornay Sauce
Once the Béchamel is prepared, turn off the heat, whisk in egg yolks one at a time, and then melt in grated Gruyère cheese over medium heat.
Beat Egg Whites
Using a mixer, beat egg whites with cream of tartar on medium speed before increasing to high until firm peaks form.
Fold in Egg Whites
Gently incorporate the beaten egg whites with the Mornay sauce in stages, maintaining airiness for a light soufflé.
Fill Ramekins
Pour the soufflé mixture into prepared ramekins, leaving a 1cm gap from the rim, and smooth the tops gently to ensure an even rise.
Bake Soufflés
Place the ramekins in a preheated oven, baking without opening the door for about 20 minutes until they are tall and golden.
Serve Immediately
Serve the soufflés right out of the oven while they are still puffed and warm, as they will begin to deflate quickly.
FAQ
Can I use different types of cheese?
Yes, although Gruyère is recommended for its melting properties, you can use other cheeses as well.
What happens if I open the oven while baking?
Opening the oven can cause a sudden drop in temperature, which may cause the soufflés to collapse.
How can I ensure my egg whites whip properly?
Start beating the egg whites slowly, then increase speed to help create stable peaks.
Can I make the soufflés in advance?
Soufflés are best served immediately after baking, as they will deflate if left to sit.
What is the purpose of the cream of tartar?
Cream of tartar stabilizes the egg whites, helping them hold their structure when whipped.
Conclusion
This cheese soufflé recipe combines rich flavors and textures, resulting in a delightful dish that is light yet indulgent. The careful integration of egg whites creates a wonderful lift, while the Gruyère cheese adds a deep, savory taste. Enjoy this dish as a sophisticated appetizer or a comforting main course, perfect for impressing family and friends.
Cheese Variations
Experiment with different cheeses such as cheddar, goat cheese, or mozzarella for unique flavor profiles.
Vegetable Additions
Incorporate sautéed spinach, mushrooms, or roasted red peppers into the soufflé mixture for added flavor and nutrition.
Herb Infusion
Add fresh herbs like thyme, chives, or basil into the Mornay sauce to enhance the aromatics and taste.
Protein Boost
Mix in cooked ham, bacon pieces, or shredded chicken for a heartier version of the soufflé that serves as a complete meal.
Serving Suggestions
Pair the soufflé with a simple green salad or a light cream sauce to complement its richness.

