Mix the binder. In a large bowl, whisk the egg, mayonnaise, Dijon, Worcestershire, Old Bay, salt, pepper, lemon juice, and zest until smooth.
Add aromatics and crumbs. Stir in parsley, chives, and breadcrumbs (or panko). The mixture should feel moist but not soupy.
Fold in crab gently. Add the lump crab and fold with a spatula or your hands. Keep the lumps intact for the best texture.
Form patties. Shape into 8 small cakes (about 2 1/2 inches wide) or 4 larger cakes. Press lightly so they hold together without compacting.
Quick chill (10 minutes). Place the formed cakes on a plate and chill in the freezer for 10 minutes or the fridge for 15. This helps them stay together while cooking.
Heat the pan. Set a large nonstick or well-seasoned skillet over medium to medium-high heat. Add oil, then butter if using.
Sear. Cook the crab cakes 3 to 4 minutes per side until deeply golden. Adjust heat so they brown evenly without scorching.
Make the sauce. Stir together the sauce ingredients while the cakes cook. Taste and tweak salt, lemon, and Old Bay.
Serve. Plate with lemon wedges, the sauce, and a simple green salad or slaw.
Pick through the crab. Remove any shells before mixing.
Don’t overmix. Gentle folding protects the crab’s texture.
Chill briefly. Even a few minutes in the freezer firm up the patties.
Use the right heat. Medium to medium-high gives color and warmth inside.
Finish with lemon. A quick squeeze wakes up every bite.