In a Mixing Bowl, combine the ½ cup mayonesa, 2 tbsp ketchup, 1 tbsp mostaza amarilla, 2 tbsp relish de encurtido de eneldo, 1 tsp vinagre de vino blanco, ½ tsp polvo de ajo, and ¼ tsp pimentón ahumado. Stir until smooth and well combined. Taste and adjust seasoning. Cover and refrigerate until ready to use — it gets better as it sits.

Melt 2 tablespoons of 2 tbsp mantequilla sin sal in a large Skillet over medium-low heat. Add the sliced 2 cebollas amarillas finamente cortadas en media luna and ½ tsp sal kosher. Cook, stirring occasionally, for 20–25 minutes until the onions are deeply golden, soft, and sweet. Stir in the 1 tsp salsa Worcestershire in the last minute of cooking. Remove from the pan and set aside.

In a large Mixing Bowl, combine the 1 ½ lb carne molida Se recomienda mezcla 80/20, ½ tsp sal kosher, ½ tsp sal kosher, ½ tsp polvo de ajo, ½ tsp polvo de cebolla, and 1 tsp salsa Worcestershire. Mix gently with your hands until just combined — do not overwork the meat, or the patties will be tough.

Divide the meat mixture into 12 equal portions (about 2 oz each). Roll each into a ball, then flatten into a round patty slightly wider than your 12 piece panecillos para sliders Los panecillos hawaianos dulces funcionan muy bien — they will shrink as they cook. Make a small dimple in the center of each patty with your thumb to prevent puffing.

Heat the same large Skillet over medium-high heat until hot. Working in batches if needed, cook the patties for 2–3 minutes per side without pressing them down. Flip once when a deep brown crust forms on the bottom. In the last 30 seconds of cooking, lay a half-slice of 6 slice queso americano cortado diagonalmente por la mitad on each patty and cover the pan briefly to melt. Remove and set aside.

Preheat your Oven to 350°F. Slice the entire sheet of 12 piece panecillos para sliders Los panecillos hawaianos dulces funcionan muy bien in half horizontally (keeping them connected is fine if using Hawaiian rolls). Place the bottom halves in a Baking Dish or on a Baking Sheet. Spread a generous layer of the special sauce on the bottom buns.

Layer the caramelized 2 cebollas amarillas finamente cortadas en media luna evenly over the sauced bottom 12 piece panecillos para sliders Los panecillos hawaianos dulces funcionan muy bien. Place a cheese-topped patty on each bun. Add 1 cup chips de encurtido de eneldo and shredded 1 cup lechuga iceberg desmenuzada if using.

Spread or spoon a little more special sauce on the underside of the top 12 piece panecillos para sliders Los panecillos hawaianos dulces funcionan muy bien, then place them on top of the patties.

Mix the melted 2 tbsp mantequilla sin sal with ½ tsp polvo de ajo. Brush generously over the tops of all the buns. Sprinkle with 1 tsp semillas de sésamo if desired.

Bake the assembled sliders at 350°F for 8–10 minutes, until the buns are golden and toasted and the cheese is fully melted. Remove from the Oven, let cool for 2 minutes, then cut or pull apart and serve immediately.