1. Combine ground pork, fresh bratwurst, pepper, salt, smoked paprika, caraway seed and fresh parsley in a large bowl 2. Shape into 6 burgers, cover and refrigerate 3. In small bowl combine chopped onion and chopped pickles, cover and set aside 4. Cook bacon on side burner of grill in large skillet, until crisp 5. Drain on paper towels, reserving bacon fat to brush on pretzel buns 6. Chop drained bacon and mix into liverwurst; set aside 7. Heat gas grill to medium-high 8. Brush grill rack with oil and cook burgers 5 minutes per side, topping with cheese during the last 90 seconds 9. Remove to platter, cover and let sit for 5 minutes 10. Brush pretzel buns (preferably NOT salted) with bacon fat and lightly toast 11. To assemble burgers: spread bottom roll with liverwurst/bacon, top with lettuce leaves, burger, chopped pickle/onions and top of roll, that has been spread with stone ground mustard
