Gather the ingredients. Start by preparing the 450 g lobster meat. As a reference, a live lobster contains about 20% meat. So for 450 g, you will need at least 2 kg of lobsters.Chef tip: For help on breaking the shell, I recommend watching How To Crack A Hard Shell Lobster by Maine Lobster Now.
Cut into large chunks the 450 g lobster meat.
Clean and finely dice 10 g celerylean and chop 1 tbsp. fresh chives and 1 tsp. fresh tarragon.
The Lobster Salad
In a large mixing bowl, gently combine the 450 g lobster meat, 1 tbsp. mayonnaise, diced 10 g celery, chopped 1 tbsp. fresh chives, chopped 1 tsp. fresh tarragon, 1 tsp. whole-grain mustard, 1 tsp. lemon juice, and 1/8 tsp. cayenne pepper. Season lightly with salt and freshly ground black pepper (about 1/4 tsp. salt and 1/4 tsp. freshly ground black pepper, adjust to taste). Mix gently to combine.
The Rolls
Heat a non-stick skillet over medium-high heat. Spread the softened 40 g unsalted butter on the outer sides of each of the 8 hot dog buns. Toast the buns on both sides until golden brown, about 2-3 minutes per side.
The Serving
Place one of the 8 leaves Boston lettuce inside each toasted buns, then generously spoon the lobster salad over the lettuce. Serve immediately and enjoy your Lobster Rolls [Guédille au homard].