For the crab cakes: begin by stirring together in a bowl the crabmeat, breadcrumbs, mayonnaise, chives, Dijon mustard, seafood seasoning, dash of salt and pepper and the juice and zest of one lemon. Place mixture in refrigerator for about 15-20mins to help the breadcrumbs absorb some of the liquid. This will help the mixture firm up and hold together well when frying.
For the tartar sauce: combine the mayonnaise, dill pickles, capers, chives, zest and juice of 1 lemon in a medium bowl and mix. Season to taste with salt and pepper. Cover and refrigerate until ready to use.
Scoop about a half cup of the crab mixture and form into 2 1/2-inch wide patties with your hands. Lightly press them together so they do not fall apart while cooking. This will make about 8 patties.
Heat 3 tablespoons unsalted butter and 3 tablespoons olive oil in a large nonstick skillet over medium-high heat. Add the crab cakes to the pan and cook until golden, about 2 minutes, then flip. Continue to cook until lightly golden, about 1-2 minutes then transfer the pan to the oven. Cook until the crab cakes are completely heated through, about 10 minutes. Serve with lemon as a garnish and tartar sauce on the side and enjoy!