Eater

The McDonald's-Inspired Breakfast Sandwich That Took Over Philly — Most-Ordered

17 September 2026 · 13:54 watch

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Go behind the line at Philly's Middle Child Clubhouse to discover how Matthew Cahn engineers two high-volume breakfast icons: a house-cured 14-day pastrami sandwich and a scratch-built, maple-infused pancake griddle sandwich.

Key takeaways

  • A 14-day wet brine followed by smoking and steaming yields pastrami that is deeply seasoned and structurally stable for slicing.
  • Egg custard baked in sheet pans and punched into discs offers perfect portion control and rapid reheating for fast breakfast service.
  • Thick pancake batter and precise griddle control are necessary to create uniform, structural buns for maple-infused sandwiches.
  • Balance sweet pancake buns by incorporating high-spice profiles in the pork sausage seasoning and infusing maple syrup with heat.

Matthew Cahn of Philadelphia's Middle Child Clubhouse demonstrates how to scale up high-volume, premium breakfast service by focusing on intensive prep and component engineering. Chefs can learn two primary techniques here: managing a two-week curing cycle for pastrami, and creating a structured, uniform egg custardCustardA preparation thickened primarily by eggs and/or starch, generally based on milk or cream. that mimics industrial breakfast patties without sacrificing texture or flavour.

Mastering the Fourteen-Day Pastrami

The foundation of Middle Child's signature pastrami sandwich is patience and controlled curing. It begins with a meticulous trimming of the beef brisket, leaving just enough fat cap to keep the meat moist during the cooking process. Cahn uses a 14-day wet brineBrineA salt solution used to season, preserve or improve the moisture retention of food. to ensure deep flavour penetration and protein cureCureTo preserve and season food using salt, sugar, smoke, acid or combinations of these. throughout the entire brisket.

Following the brineBrineA salt solution used to season, preserve or improve the moisture retention of food., the brisket is coated in a heavy dry-rub of cracked peppercorns and coriander, then smoked to build a deep bark. The final step is steaming, which gently breaks down the remaining collagen, resulting in a product that slices cleanly for service but melts on the pass. This process requires tight inventory management, as a fortnight-long prep cycle means kitchen teams must anticipate demand weeks in advance to avoid running short during busy morning shifts.

Reengineering the Fast-Food Breakfast Classic

The "MidGriddle" relies on rebuilding a commercial classic using high-quality components and precise cooking methods. Rather than cooking eggs to order, which slows down the line, Cahn employs a steamed egg custardCustardA preparation thickened primarily by eggs and/or starch, generally based on milk or cream.. The eggs are whisked with dairy, poured into a sheet pan, and baked gently to set. This technique ensures absolute consistency in thickness and portioning, allowing the team to punch out uniform egg discs that heat up quickly and melt cheese efficiently.

The sandwich buns are scratch-made pancakes, requiring a thick batter to hold their round shape on the flat top. To counter the sweetness of the maple syrup—which is steeped with spices for a distinct kick—the pork sausage patty is heavily seasoned with a custom Philly-style spice blend. When assembling, the hot pancake buns are brushed with the spicy syrup, layering sweet, heat, and fat in every bite. This approach proves that high-volume breakfast items benefit from smart prep-ahead techniques and classic culinary execution.

Questions from the pass

Frequently asked questions

Why does the chef steam the pastrami after smoking it?

Steaming the pastrami after smoking is crucial to gently break down the remaining collagen in the beef brisket. This step ensures the meat becomes incredibly tender and melt-in-the-mouth while still holding its structure for clean, uniform slicing on the line during service.

What is the benefit of using an egg custard instead of fried eggs?

Baking an egg custard in a sheet pan guarantees total consistency in thickness and portioning. It allows the kitchen to prep hundreds of uniform egg discs ahead of time, which can be quickly reheated and melted under cheese on the flat top, drastically reducing ticket times.

How do you prevent the pancake buns from becoming soggy when maple syrup is added?

To prevent sogginess, use a thick pancake batter that creates a dense, sturdy crumb structure capable of absorbing liquid. Additionally, brush the syrup directly onto the hot griddled pancakes rather than pouring it, ensuring the syrup glazes the surface without oversaturating the bun.

Why is a 14-day wet brine necessary for the pastrami?

A 14-day wet brine ensures that the curing salts and aromatics penetrate to the very center of the large beef brisket. This extended curing time alters the protein structure, preserving the meat, retaining moisture during smoking, and developing the deep, classic pastrami flavour profile.

Original video by Eater. This overview is written independently by The Chef's Circle editorial desk — watch the original on YouTube.

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