Ingredient:

• 1 pound lump crab or imitation crabmeat
• 1 pound uncooked shrimp, peeled and deveined
• 6 teaspoons lemon juice, divided
• 1 cup minced celery
• 1 cup mayonnaise (such as Hellmann's)
• ⅓ cup minced red onion
• 1 tablespoon minced red onion
• 3 tablespoons minced fresh dill
• 1 tablespoon seafood seasoning (such as Old Bay)
• salt and freshly ground black pepper to taste