Add sour cream, cream cheese and Old Bay Seasoning to a food processor or a medium mixing bowl. Process or beat with an electric mixer on low speed until creamy.

Remove from processor to a mixing bowl, if using.

Stir in celery, onion and lemon juice. Mix well.

Fold in crab meat.

Place in a serving bowl and serve with crackers or chips.

If making in advance, store in a tightly sealed container, in the refrigerator, until ready to serve.