Grilled Marinated Pork Shoulder Blade Steaks

olive oil, plus some for the grill

white wine

medium onion, thinly sliced

Juice and grated zest of one orange

Juice and grated zest of one lemon

brown sugar

garlic cloves, finely chopped

coarsely ground black pepper

cumin

paprika

(7 to 8oz.) pork shoulder blade steaks

Salt