The BEST Lobster Rolls With Butter AND Mayo My Secret

Ingredients

• 4 (1 1/4 - 1 1/2 pound) live lobsters (approximately 570-680g each)
• 8 cups water (approximately 1.9 liters)
• 1/4 cup sea salt (approximately 55g)
• 1/2 cup mayonnaise (115g) - Use a high-quality brand
• 2 tablespoons finely chopped celery (approximately 20g)
• 1 tablespoon finely chopped fresh chives (approximately 5g)
• 1 tablespoon fresh lemon juice (approximately 15ml)
• 1/4 teaspoon celery salt (approximately 1g)
• 1/8 teaspoon freshly ground black pepper (approximately 0.5g)
• Pinch of cayenne pepper (optional)
• 4 New England-style top-split hot dog buns (approximately 15cm long each)
• 4 tablespoons unsalted butter, melted (approximately 60g) – divided
• 2 tablespoons unsalted butter (approximately 30g) – for browning