How It's Made: Dubai Chocolate, Oreo, Brownies

More than 450 billion Oreo cookies have been sold worldwide since 1912. According to Statista, every year Nabisco produces over 40 billion cookies, filling supermarket shelves from New York to Los Angeles, as confirmed by Nabisco. Behind these numbers lies a machine-driven process that never stops. For many Americans, Oreo is more than a snack. It is a memory of childhood, a glass of milk, and the familiar twist-and-dunk ritual. Yet few people have actually seen how this small cookie comes to life inside the factory. Today, we will open the doors and follow each step, from raw wheat and cocoa beans to the finished black-and-white sandwich cookie. The Oreo story began in 1912 when Nabisco introduced a new sandwich cookie in New York City. It was designed to compete with Hydrox, a rival brand that had entered the market earlier. Over the years, they became part of American culture, tied to the ritual of twisting, licking, and dunking. Few know that the bottom cookie is slightly larger, a detail that prevents the filling from spilling. The journey of an Oreo begins with raw ingredients arriving at the factory in bulk. Trucks deliver wheat flour from American farms, granulated sugar from domestic suppliers, and cocoa powder imported from Ghana, Ivory Coast, or Indonesia. The flour is sifted to remove clumps, while sugar and cocoa are blended into the mix. Vegetable oil, salt, and baking soda are then added, activating chemical reactions that give the cookies their structure. The result is a dark, smooth dough, with a rich cocoa smell that fills the air. The dough now enters machines that portion it into small, exact balls. Rollers flatten each ball into a circular shape that matches the Oreo standard diameter. Hundreds of pieces line up on wide conveyor belts moving into the oven. The industrial ovens stretch more than 100 feet and operate at nearly 400 degrees Fahrenheit. Rows of cookies ride through for about 15 minutes, exposed to hot air that circulates evenly across multiple tiers. Exhaust fans release steam, while temperature sensors prevent overbaking. When the cookies exit, they are crisp, dry, and nearly identical in size. Before any filling is added, the baked cookies must cool to room temperature. Cooling tunnels stretch across the factory floor, equipped with powerful fans that lower each tray's temperature steadily. This prevents the creamy filling from melting later. By the end of this stage, trays hold only flawless, patterned cookies aligned for filling. But what about the sweet cream that defines every Oreo? How do factories create that smooth layer with absolute consistency? The cream filling is prepared in large stainless steel vats. Sugar and vegetable oil are poured in first, then blended at 2,000 revolutions per minute until light and fluffy. A secret ingredient, kept confidential by the manufacturer, is added to create the unique Oreo flavor. From the vats, the cream travels through insulated tubes towards specialized filling machines. Here, a precise pump deposits 1.29 grams of cream onto every bottom cookie. The top cookie is lowered gently onto the cream, and a press applies even pressure. Conveyor lines can assemble more than 30,000 cookies per hour, each sandwich identical in weight and size. Have you ever noticed that the bottom cookie is always slightly bigger than the top? That detail matters when it comes to the final seal. Once filled, the cookies move directly into automated packaging lines. Plastic films unwind onto the conveyor, forming sleeves that hold a fixed number of cookies. Pallets of Oreos are shrink-wrapped and loaded onto trucks bound for supermarkets. From here, they spread across America and beyond, reaching shelves in over 100 countries. By the time they arrive at your local store, millions of cookies have passed through ovens, fillers, and wrappers without pause. So the next time you twist an Oreo apart, will you picture the giant machines that worked day and night to build that simple bite? A single chocolate bar from Dubai can cost $40, yet it sells out faster than stores can restock. According to Bloomberg, demand is so intense that some retailers now limit customers to only two bars each. On TikTok, videos of people slicing into its bright green pistachio filling have reached more than 100 million views. This rare treat has even fueled a small black market, with resellers doubling the price for those desperate to taste it. For many, it looks like a luxury dessert. But for the workers inside the plant, it is a non-stop sequence of machines, sensors, and strict controls. So what makes this $40 chocolate both scarce and irresistible worldwide? The story of Dubai's viral chocolate is recent but powerful. It first appeared as a luxury creation from a boutique chocolatier in the United Arab Emirates. Within months, global demand outpaced supply, and the $40 bar turned into a symbol of exclusivity. The process starts with sacks of cacao beans arriving from Ghana, Ecuador, and Indonesia. Then the approved beans enter tall roasting drums with digital controls. Each batch is heated between 250 degrees Fahrenheit and 300 degrees Fahrenheit depending on origin. Roasted beans fall into winnowing machines that use air currents to lift away light shells while heavy nibs drop onto conveyor belts. They are carried by enclosed pipes into giant grinders lined with steel plates. As grinding continues, the heat from friction releases natural cocoa butter, turning the mass into a thick paste. The grinding continues for 72 hours. By the end, the mixture flows like liquid, glossy and dense. Now that the base liquid is formed, how do manufacturers transform it into a bar with the right taste and texture? The liquid cacao mass enters temperature-controlled vats. Here technicians add other key ingredients. Premium milk powder for creaminess, measured sugar to balance bitterness, and a blend of emulsifiers to keep the texture uniform. The chocolate now flows through insulated pipes, moving toward the next station. Premium pistachios arrive from Iran, Turkey, and California. Industrial grinders crush the approved nuts into a thick green paste. At current prices, pistachios cost more than $10 per pound, making this the most valuable ingredient in the recipe. Yet the filling is not pistachio alone. What other components give this chocolate its unique crunch and depth? Kadayif, a traditional Middle Eastern pastry of fine dough threads, is delivered from a specialized supplier. Workers soak it overnight in sugar syrup, then separate the strands by hand to avoid breakage. Afterward, it is toasted in ovens at 350 degrees Fahrenheit for 15 minutes. At the same time, sesame seeds are roasted and ground into a smooth tahini paste. The three ingredients converge at a mixing station. Technicians follow an exact formula. 62% pistachio cream, 28% kadayif, and 10% tahini. After 36 hours, the filling is complete. It is piped into molds already lined with the chocolate base. More chocolate is poured over the top, sealing the bar. Cooling tunnels set the structure until the bars are firm and glossy. Each bar is wrapped in foil, packed into branded boxes, and scanned for defects. Final cartons leave the plant under tight control since demand is so high. So next time you see this $40 bar online, will you think of luxury or of the countless machines that worked in silence to create it? Americans eat an estimated 2.15 billion brownies every year, according to Statista. In factories, one single batch of batter can produce more than 6,000 brownies, enough to fill hundreds of boxes in less than an hour. Behind this massive scale is a sequence of mixers, ovens, and conveyor belts that work with clock-like precision. For many, the brownie is more than just a dessert. It is a square of childhood, served warm on weekends or packed into a lunchbox. So how does simple batter transform into millions of uniform brownies ready for store shelves? The exact origin of the brownie is still debated. One story tells of a homemaker in Bangor, Maine, who forgot to add baking powder to a chocolate cake, creating a dense square instead. Another version claims a Chicago hotel chef deliberately invented the treat for an event in the late 1800s. By the early 20th century, brownies appeared in cookbooks and spread across American households. They were easy to bake, easy to pack, and soon became a staple for school lunches and family gatherings. But how do factories turn this simple kitchen mistake into millions of perfect squares? The process begins with large vats where liquid ingredients are blended. Canola oil is pumped into stainless steel bowls, followed by xanthan gum, which helps brownies retain moisture after baking. After that, whole eggs and corn syrup are added, giving structure and sweetness. Finally, a precise hopper releases flour into the bowl, thickening the batter into a smooth, glossy mixture. Empty baking pans move along a conveyor toward the depositor. A fine mist of oil is sprayed onto each pan to prevent sticking during baking. The depositor is a computerized machine that releases the same amount of batter into every cavity with pinpoint accuracy. The pans enter an oven that stretches nearly 12 feet and contains 13 rotating tiers. The brownies bake at controlled temperatures for around 20 minutes. By the time the pans reach the exit, the brownies are fully cooked and give off a deep chocolate aroma. Fresh from the oven, trays slide into a cooling tunnel that runs parallel to the baking line. From there, the brownies shift onto a narrow conveyor where workers visually inspect the flow. Broken pieces are removed to keep only uniform squares. A sensor detects brownies as they approach the wrapping station. Rolls of plastic film unwind and wrap each brownie tightly. Heated wheels press the seams, sealing them shut in a continuous motion. Within hours, they move from the factory floor to delivery trucks bound for supermarkets nationwide. And next time you open a packet of brownies, will you picture the giant machines that shaped, baked, and sealed every bite? Ketluan. From the crisp chocolate shells of the Oreo to the $40 pistachio-filled bars of Dubai and the chewy squares of the American brownie, each product shows how simple ingredients are transformed by complex machines. Factories measure, mix, bake, and package with precision, creating foods that feel personal but are built on massive systems. What looks like a small cookie, a rare chocolate, or a lunchbox treat carries the work of conveyors, ovens, and robotic arms running day and night. These stories remind us that every bite is more than flavor. It is history, culture, and technology combined. If you enjoyed this journey inside the factory, subscribe to Captain Discovery and join us again to uncover more secrets inside the world's most familiar products.