1-First Step: Prep and Marinate the Chicken Gather your mise en place: measure the cream and cheeses, shred the cheeses if needed, and have 6 tortillas ready. Thinly slice or lightly pound the 220 g chicken breast so pieces cook quickly and evenly. In a bowl, combine the seasoning: 1 tsp salt, 1/2 tsp white pepper, 1 tsp paprika, 1 tsp garlic powder, 1 tsp dried oregano, and 1/2 tsp dried rosemary. Toss the chicken with the spices until each piece is evenly coated. Let sit for a brief marinate while you heat the pan; even 5 minutes gives the flavors time to settle.

2-Second Step: Sear the Chicken Heat a skillet over medium-high heat and add 20 g unsalted butter and 1 tbsp oil. When the fat shimmers, add the seasoned chicken pieces in a single layer. Sear until the surfaces are lightly golden, about 2-3 minutes per side. The goal is to get color, not to fully cook the chicken; this keeps the meat juicy. Remove the chicken and set aside on a plate.

3-Third Step: Make the Alfredo Sauce In the same pan (leave the fond for flavor), lower heat to medium. Pour in 200 ml heavy cream and bring to a gentle simmer, about 2-3 minutes. Stir to scrape any browned bits from the pan bottom. Add 30 g finely grated Parmesan, 45 g shredded mozzarella, and 50 g shredded Emmentaler cheese. Stir constantly until the cheeses melt and the sauce becomes smooth and creamy, about 2-4 minutes. If the sauce is too thick, add a tablespoon of water or milk; if too thin, simmer a minute longer.

4-Fourth Step: Reserve Dipping Sauce and Finish Chicken Before returning the chicken, remove half of the Alfredo sauce to a small bowl and set it aside for dipping. This reserved portion will be silkier and less chunky for serving. Return the seared chicken to the remaining sauce in the pan. Simmer for 1-2 minutes until the chicken reaches an internal temperature of 75 C (165 F) and is fully cooked through. Stir so each piece is coated in the creamy sauce. Turn off the heat and let the filling rest for 2 minutes; this helps the sauce thicken slightly so tacos are not soggy when assembled.

5-Fifth Step: Assemble the Tacos Lay out each tortilla. Sprinkle a base layer of 150 g Emmentaler cheese (divide across 6 tortillas). Spoon a generous amount of the creamy Alfredo chicken onto the cheese layer, then top with more Emmentaler or a bit of extra mozzarella for an oozy middle. Fold each tortilla over to form a taco, pressing the edges so some cheese seals the seam.

6-Final Step: Crisp and Serve Heat a clean skillet with a thin layer of oil over medium heat. Toast each folded taco for 2-3 minutes per side until the tortilla is golden and crispy and the cheese inside has melted. Use medium heat so the tortilla crisps slowly and the cheese reaches peak stretch without burning. Transfer to a plate, sprinkle with extra Parmesan, and serve immediately with the reserved Alfredo sauce for dipping.