Melt the butter over low heat until completely smooth without letting it brown or develop a burnt flavor.

Add minced garlic and cook gently for one minute until fragrant, stirring continuously to prevent burning.

Mix in paprika, Cajun seasoning, Old Bay seasoning, cayenne, red pepper flakes, black pepper, and brown sugar thoroughly.

Pour in Worcestershire sauce and lemon juice, whisking well until everything blends into a smooth mixture.

Remove from heat, allow slight cooling, then whisk in mayonnaise until the sauce becomes creamy and silky.

Stir in chopped parsley, taste for seasoning, and serve warm with your favorite seafood or side dishes.