Chesapeake Crab Burger | Savory

Ingredients

• 1 lb ground beef
• 1 egg
• 1 tsp ground black pepper
• 1 tsp salt
• 4 kaiser rolls
• 1 tbsp olive oil
• 1 large shallot, minced
• 2 cloves garlic, minced
• pinch kosher salt
• pinch black pepper
• 1/4 cup seafood stock
• 3 tbsp Dijon mustard
• 1/2 lb crabmeat
• 2 tbsp butter