The deluxe version elevated everything! I ordered both to compare and this one wins — same incredible Cajun ranch and bacon combo, but the Roma tomatoes add juicy freshness and shredded lettuce brings crisp texture. The balance between rich Cajun spice and bright vegetables makes this seriously addictive.
Prepare the Cajun ranch sauce: In a small bowl, combine ranch dressing, mayonnaise, smoked paprika, Cajun seasoning, garlic powder, and lemon juice. Mix until smooth and refrigerate while you cook. Copycat tip: Cajun seasoning plus a touch of smoked paprika brings the exact tang and spicy kick found in McDonald's LTO sauce.
Marinate chicken: Pound chicken breasts to even thickness. Soak in buttermilk with half the salt and pepper for at least 30 minutes. This replicates McDonald's juicy interior in their Deluxe McCrispy.
Bread the chicken: Mix all-purpose flour, cornstarch, remaining salt, black pepper, and garlic powder in a shallow bowl. Beat eggs in another bowl. Dip marinated chicken in flour mixture, then eggs, then flour again for a double-dipped coating. Copycat tip: Double coating ensures extra crunch like the original.
Fry the chicken: Heat vegetable oil to 350°F. Fry chicken breasts for 5–6 minutes per side until golden and crispy. Drain well. Copycat tip: McDonald's achieves crispiness by industrial pressure-frying; home double-frying and cornstarch mimic that finish.
Prepare toppings and assemble: Pan-fry bacon until crispy; slice Roma tomatoes thinly. Briefly steam brioche buns (covered, 1 minute) for that McDonald's soft touch. Spread Cajun ranch sauce on both bun halves. Layer lettuce, tomato, crispy chicken, American cheese slice, and two bacon strips per sandwich. Serve immediately for best flavor and texture.