In this article, I will share what the major component of a croissant is that permits it to have many layers. What gives croissants their flaky, light, and sumptuous texture?
The layers are created because the dough undergoes a transformation process due to one crucial ingredient. Let us go ahead and see what it all entails.
Overview
Few pastries are as adored as the croissant. Much like a golden crispy art piece, it has a flaky texture, soft butter undertones, and has found its home in each French bakery as well as graced the breakfast menus around the world. However, the croissant’s airy layers do not arise from chance.

The process of lamination- folding butter into dough multiple times- adds alternating thin layers and as the pastry bakes, steam from butter causes the dough to puff up in the signature flaky texture.
To summarize, butter is the star ingredient that transforms the simple dough into artful layers as described croissant.
The Art of the Layers
The foundational undertaking of croissant creation revolves around a culinary process known as lamination. This specific technique involves folding portions of butter within a given piece of dough multiple times.
When done correctly, this manner produces dozens, even hundreds of thin layers. Essentially, the outcome is a pastry that contains a crispy outer layer, a tender inner layer, and an airy texture through the middle.
The dough itself usually consists of a yeast-leavened enriched bread, which helps provide some flavor and structure. However, the real magic happens with butter. That is because the beauty lies in the fold ins.
Why Butter Is the Key Ingredient
In the case of croissants, butter takes away the starring role whenever layering is concerned. To start off, butter’s composition structure of 80 percent fat and twenty water creates a unique croissant texture.
As the croissant bakes in the oven, the butter portion of the croissant also has its own processes. The buttery part’s water will slowly evaporate and in the process create steam. The result steam will push against the layers of dough which puffs them and helps separating them.

Thus forming the croissant rise and also flaky structure. In the midst of all of that, the buttery fat will coat the dough layers, preventing them from sticking while helping each layer remain contour free and distinct throughout the whole baking process.
Without butter, it will be impossible to achieve the same level of agitation and separation. When commercially baking, other industry margarine or fat products may be used, however they do bot achieve the fine texture and flavor that unsalted butter provides. This is the exact reason why the traditional croissants depend on great quality butter.
The Butter and dough Lamentation
The process of lamenation is a mixture of an art form and a scientific procedure. First, a slab of cold butter is set over the expanded dough. After that, the dough xover is made and what follows is a rolling and folding procedure which is known as the “turns”.
The croissant dough is known to have three to four turns, after which they are rested and chilled. These steps are meant to keep off butter from melting.
Ensuring that there the butter is fully chilled results to separating butter and keeping it in layers. If the butter heated, the result will be the opposite of what we want. Instead of fluffy and tender pastry, we will get dense and oily pastry.
The Equilibrium Between Butter and Dough
For proper lamination to take place, both the dough and the butter have to be in the proper condition. The dough has to be soft and workable, yet not sticky, while the butter has to be cold and flexible and not brittle.
Laying the dough in cold butter will make it break and tear through the dough. On the other hand, overly cold dough will tear when butter is soft because it will melt into the dough and ruin the layers.
This is the reasoning temperature management is essential during lamination. To eliminate temperature issues, professional bakers use marble slabs, cold rolling pins, and temperature controlled rooms.
Can Other Fats Work?
For convenience and ease of use, some commercial bakery shops use margarine instead of butter. While these substitutes can produce layered pastries, the rich flavor and crisp texture is often missing.

Other fats cannot replicate the key water content and steam generation needed for puff and flaky croissants.
Final Thoughts
The ingredient that gives the croissant its layers is butter, without a doubt. However, croissant-like cold, high-quality butter needs to be used with precision and care. Butter, along with the flour, yeast, and skill, provides harmony in a croissant’s flaky beauty that is loved across the globe.
Next time you enjoy a delicious warm croissant, seeing its delicate layers pull apart reveals a simple-looking pastry containing a secret that is buttery and well laminated.