Place jumbo soft pretzels on a baking sheet. (I prefer not to salt the pretzel but feel free to apply it per the directions if desired)
In a large bowl, beat cream cheese, sour cream, mayonnaise, lemon juice, Worcestershire sauce, mustard powder, and garlic salt until smooth then add milk, cheddar cheese and Old Bay.
Fold in crab meat then spoon dip onto pretzels. Sprinkle with a little extra cheddar cheese if you want then bake at 350˚ for 15-20 minutes or until crab dip is hot all the way through.
To make a bowl of just crab dip without the pretzel, simply spoon the dip into a greased casserole dish and bake at 350˚ for about 25 minutes, stirring as needed. Serve with a fresh bread, chips, soft pretzel nuggets or hard pretzels.