Wisk together egg, mustard, lemon juice, Old Bay, oil, and pepper

Drain crab meat, and fold into the mixture by hand

Once crab is fully coated, fold the bread crumbs in by hand

Form 6-8 cakes and lay them on a baking sheet with waxed paper underneath

Sprinkle with additional Old Bay

Cover with waxed paper and refrigerate at least 30 minutes

In remaining olive oil and butter over medium-high heat, cook each side 2-3 minutes until golden brown, then remove to paper towel lines plate to drain for 1-2 minutes