Dalgona, the honeycomb-toffee candy popularized as the so-called Squid Game cookies, is a simple yet precise thermoplastic candy made from just sugar and baking soda. When heated to the right temperature and folded quickly, sugar melts and releases carbon dioxide, creating a fragile, bubbly sponge that dissolves cleanly in your mouth. This guide explains the core method, ingredient ratios, temperature cues, and safety practices so you can reproduce the iconic look and brittle texture reliably, whether you are making cookies as a science experiment or a playful dessert.
How Dalgona Works: The Science Behind the Squid Game Cookies
The familiar mushroom-shaped candy used as Squid Game cookies is essentially a carefully heated sugar mass that sets into a brittle foam. Understanding the science helps you manage variables such as heat, timing, and humidity. Key concepts include the cooking stages of sugar, the role of baking soda as a leavener, and the narrow temperature window in which the candy remains workable. Careful temperature control and quick, confident folding are the two most important factors for consistent results.
Sugar Stages and the Transition to Dalgona
As sugar heats, it progresses through stages from wet syrup to hard crack. For Dalgona, you heat granulated sugar with a small amount of water until it reaches the hard crack stage, usually between 300°F and 310°F (149°C and 154°C). At this point, the syrup is fully melted, viscous, and unstable. Introducing baking soda off‑heat creates an immediate foaming reaction that aerates the sugar, creating the signature bubbly structure that gives the Squid Game cookies their fragile crunch.
Why Baking Soda and Not Baking Powder
Baking soda, a base, reacts with the acid and heat to release carbon dioxide rapidly, creating fine bubbles throughout the molten sugar. Baking powder contains both an acid and a base, but its leavening schedule is less aggressive and less predictable for this application. Using pure baking soda gives faster, more controlled expansion, which is essential for achieving the light yet brittle texture that defines Dalgona and makes the squid game cookies recognizable.
Practical Ingredients and Ratios
Exact ratios matter because small changes in sugar, water, and baking soda will change the texture, spread, and working time. The following table summarizes common home recipes that balance manageability with the classic honeycomb structure associated with Squid Game cookies.
| Ingredient | Typical Ratio | Purpose |
|---|---|---|
| Granulated sugar | 1 part (by weight) | Provides the brittle, glassy matrix |
| Water | 1/4 to 1/3 part | Helps even heating and controls boil speed |
| Baking soda | 1 teaspoon per 100–120 g sugar | Creates gas bubbles for the honeycomb structure |
Equipment and Preparation
Successful Dalgona depends on using appropriate tools and preparing your workspace. A heavy-bottomed saucepan reduces hot spots and promotes even cooking, while a candy thermometer or the cold-water test provides reliable temperature reads. A thin metal spatula, a silicone baking mat or parchment paper, and a heatproof surface for pressing are essential. Prepare all tools and ingredients before you start, because once the sugar reaches temperature, your window to add baking soda and shape the Squid Game cookies is narrow.
Recommended Equipment List
- Heavy-bottomed saucepan or small pot
- Instant-read or candy thermometer
- Heatproof spatula or wooden spoon
- Silicone baking mat or parchment paper
- Flat surface for pressing (cutting board or tray)
Step-by-Step Method
Combine sugar and water in a clean pan, stirring only until the sugar is moist. Cook without stirring until the mixture reaches 300–310°F (149–154°C), or until the syrup thickens and turns pale gold. Off the heat, immediately sprinkle the baking soda over the surface, stir quickly but carefully to combine, and let the foam expand briefly. Working quickly, pour the bubbling mixture onto your prepared surface, press gently to form a thin sheet, and cut into shapes before it fully sets. Handle with caution, as the candy remains hot and pliable for several minutes.
Critical Timing and Temperature Notes
Adding baking soda too early can cause excessive foaming and waste the mixture; adding it too late results in a dense, hard candy that is difficult to shape. Once the temperature hits the hard crack range and the surface is glossy, you have a short period to remove the pan from heat, introduce baking soda, and spread the foam before it sets. If the mixture becomes too stiff to fold, reheat gently for a few seconds, but avoid overheating, which can cause burning and unpleasant bitter notes.
Common Problems and Troubleshooting
Even experienced cooks encounter issues the first few times they make Dalgona and use it as Squid Game cookies. Sticky candy, weak bubbles, or cracking often trace back to temperature inconsistencies, humidity, or incorrect ratios. The following table maps symptoms to likely causes and corrective actions you can apply immediately.
| Symptom | Likely Cause | Corrective Action |
|---|---|---|
| Sticky or chewy texture | Undercooked sugar or too much moisture | Reheat briefly to hard crack stage or extend cook time slightly |
| Flat, no bubbles | Baking soda added too late or old leavening | Ensure baking soda is fresh and add it off-heat but promptly |
| Uneven bubbles or large pockets | Rapid stirring or over-foaming | Fold gently and work quickly; avoid vigorous mixing |
| Cracking during shaping | Set too quickly or overly thick sheet | Work while warm, press gently, and keep pieces thin and even |
Safety and Best Practices
Cooking sugar to over 300°F creates extremely hot, sticky syrup that can cause serious burns. Use dry utensils, avoid splashes, and keep children and pets away from the cooking area. If sugar contacts skin, cool water is the safest immediate treatment; do not try to scrape hardened syrup off while hot. Work in a clean, clutter-free space, and avoid adding dye to the main batch if you plan to eat the Squid Game cookies, as some food colorings can affect texture or stability.
Storage, Shelf Life, and Creative Variations
Dalgona and the squid game cookies style keeps well in an airtight container at room temperature for up to one week, though humidity can soften the honeycomb over time. For longer storage, consider freezing flat portions in rigid containers and bringing to room temperature before serving. You can experiment with light dustings of cocoa, matcha, or tempered chocolate coatings, but avoid adding extra moisture to the cooked sugar. Remember that any addition can change how the cookie bends and breaks, which is part of the tactile experience many people associate with the original Squid Game cookies.
Wrap-Up and Key Takeaways
Making Dalgona as Squid Game cookies is a repeatable process when you respect sugar stages, temperature control, and timing. Use consistent ratios, a reliable thermometer, and a prepared workspace, and you will achieve a delicate, bubbly candy that shatters cleanly and melts on the tongue. Treat it as both a culinary technique and a playful design, and you will be able to recreate the look and texture of the show’s iconic cookies with confidence and clarity.