In a blender or food processor, add the beer, Cheddar, cream cheese, half of the pickled jalapeños, onion, garlic, salt, black pepper, dry mustard, and Worcestershire sauce. Blend until smooth, scraping down the sides as needed.
Transfer the beer cheese to a bowl, then stir in the other half of the diced pickled jalapeños. Cover and refrigerate for 4 hours before serving. Serve chilled with pretzels, pretzel rolls, and/or crackers.
