Created by dienia b on May 11, 2022
Step 1: Mix 1 tablespoon butter with the parmesan cheese
Step 2: Smear on the sour dough bread
Step 3: Form beef patty to bread size
Step 4: Season beef patty to taste
Step 5: Grill
Step 6: Put onion with butter and grill with patty until browned
Step 7: Add cheese
Step 8: Melt
Step 9: Top with onions
Step 10: Meanwhile
Step 11: In another skillet
Step 12: Grill bread
Step 13: On inside add mustard to taste
Step 14: Grill until cheese is crusty
Step 15: Add tomato on one side
Step 16: Burger on another
Step 17: Put together
Step 18: Cut in half