Grilled onions take this beer cheese dip to the next level. Smoky/sweet onions + cheddar + blue cheese + beer = a melty, cheesy, perfect appetizer! Perfect for Father’s Day & summer entertaining. Don’t forget the chips!
Preheat grill to medium. Slice onion into rings and brush with oil on both sides. Grill on each side for about 5 minutes, until slightly charred and fork tender.In a blender, combine grilled onions and milk. Pulse just for a few seconds until the onions are incorporated. (Note: if you blend for too long, the milk will start to separate. This step is just to chop up the onions.)Melt butter in a saucepan over medium heat. Add flour and whisk well until it forms a thick paste. Whisk in the milk/onion mixture, whisking until thickened (about 1-2 minutes).Add in beer, salt and both cheeses. Whisk well until cheese is melted and fully incorporated.Remove from heat and pour into serving dish. Top with more blue cheese crumbles and serve with chips, soft pretzels, etc.