Cook the 6 rodajas de tocino grueso cocidas y: Lay the 6 rodajas de tocino grueso cocidas y slices in a cold large skillet. Turn the heat to medium and cook, flipping occasionally, until crispy, about 8–10 minutes. Transfer to a paper towel-lined plate to drain. Once cool, crumble into bite-sized pieces.

Hard-boil the 4 huevos grandes duros y: Place 4 huevos grandes duros y in a medium saucepan and cover with cold water by 1 inch. Bring to a full boil over medium-high heat, then immediately cover, remove from heat, and let sit for 12 minutes. Transfer 4 huevos grandes duros y to a bowl of ice water for 5 minutes, then peel and quarter.

Cook the 2 pechugas de pollo sin hueso y sin piel cocidas y cortadas en cubos: Pat the 2 pechugas de pollo sin hueso y sin piel cocidas y cortadas en cubos dry and season both sides with ½ tsp sal kosher para sazonar pollo and ¼ tsp pimienta negra recién molida. Heat 1 tbsp of aceite de oliva para cocinar pollo in the same skillet over medium-high heat. Cook the 2 pechugas de pollo sin hueso y sin piel cocidas y cortadas en cubos for 6–7 minutes per side, until golden and cooked through to an internal temperature of 165°F. Let rest 5 minutes, then dice into ½-inch cubes.

Prep the remaining toppings: Dice the 2 aguacates maduros sin hueso and 2 tomates Roma sin semillas y. Slice the 3 tallos de cebolletas. Chop the 2 corazones grandes de lechuga romana and spread it in an even layer across a large salad mixing bowl or platter.

In a small mixing bowl, combine the 3 tbsp vinagre de vino tinto, 1 tsp mostaza Dijon, 1 tsp miel, 1 diente de ajo finamente picado o, ½ tsp sal kosher para sazonar pollo, and ¼ tsp pimienta negra recién molida. Whisk together until smooth. Slowly drizzle in the 1 tbsp aceite de oliva para cocinar pollo while whisking constantly until the dressing is emulsified and slightly thickened. Taste and adjust seasoning as needed.

Arrange the toppings in neat rows over the 2 corazones grandes de lechuga romana: 2 pechugas de pollo sin hueso y sin piel cocidas y cortadas en cubos, 6 rodajas de tocino grueso cocidas y, hard-boiled 4 huevos grandes duros y, 2 aguacates maduros sin hueso, 2 tomates Roma sin semillas y, 4 oz queso azul, and 3 tallos de cebolletas. This is the classic Cobb presentation — each ingredient in its own stripe across the salad.

Drizzle the vinaigrette over the salad just before serving, or serve it on the side so guests can dress their own portions. Toss gently at the table to combine, or serve as-is for the full visual effect.