Rib Rub

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2 Cups Dark Brown Sugar
2 tblsp Onion Powder
2 tblsp Garlic Powder
1 tblsp Sweet Paprika
1 tblsp Hot Paprika
2 tblsp Old Bay (contains salt and a little heat)
1 tblsp Kosher Salt
1 tblsp Black Pepper
1 tblsp Onion Flakes
1 tsp Mustard Powder
1 tsp Cayene or Chili Powder.
1 tsp celery seeds