Best Onion Boil Recipe

Instructions

1. Arrange a rack in center of oven; preheat to 375°. Cut out 4 (12" x 12") squares of foil.
2. In a small bowl, mix butter, paprika, garlic powder, salt, Old Bay, thyme, and pepper until smooth.
3. Trim onions at root and stem ends so onions sit flat on a work surface; peel onions. Using a small sharp knife, cut out center core from the top of each onion, leaving the bottom third of core intact (the cut-out center should be about 1/2" wide). Score top of onions in a cross pattern, cutting about 1" deep.
4. Stuff about 2 tsp. seasoned butter into center of each onion, then spread 4 tsp. seasoned butter on top of each; reserve remaining butter for serving.
5. Place an onion in the center of a foil square. Carefully fold up foil to enclose each onion and crease at the top to seal as tightly as possible. Arrange on an unlined baking sheet.
6. Bake onions until tender in the center, 55 to 65 minutes. Let cool 2 minutes before opening. Baste with reserved seasoned butter. Top with parsley (if using).