Crack Crab Dip

Ingredients

• 1 tablespoon unsalted butter, softened, for greasing the dish
• 1 (8-ounce) package cream cheese, softened
• 1/2 cup mayonnaise
• 1 shallot, minced
• 2 tablespoons chives, minced
• 2 cloves garlic, minced
• 2 1/2 teaspoons lemon juice
• 1 1/4 teaspoons Cajun seasoning
• 1/2 teaspoon mustard powder
• 1 1/2 teaspoons Worcestershire sauce
• 1/3 cup plus 2 tablespoons parmesan, grated, divided
• 1 (8-ounce) container lump crabmeat, drained and shell pieces removed
• salt, to taste
• black pepper, to taste
• 5 buttery crackers, finely crushed
• chives, to taste, roughly chopped
• butter crackers, to taste
• baguette, to taste, sliced