Heres a really nice crab cake recipe , but you have to be using real crab meat.Doesnt matter if its frozen , but not that awful stuff called crab sticks they have about 1% crabmeat and flavour and is cheap and nasty.

crabmeat- 250 gms / canned or frozen claw meat( lump is nice but thats for eating in salads and stuff for cooking claw meat is more economic and makes more sense to use.
mayonnaise- 25 gms +50 gms the 1st bit gets mixed in and the remainders for the dipping sauce
breadcrumbs- 50 gms – or just enough to bind the crab, we want the cakes to be moist and juicy not like a lump of cement.
egg- 1 nos
salt and pepper – to taste
chopped red onion- 50 gms
garlic- 2cloves chopped
parsley- small sprig
thyme
oil to shallow fry
chipotle chillies- 1/4 of dry chilli/can use the canned ones too.

method

heat about 10 gms of oil and lightly saute the onion ,garlic ,thyme and crab meat.  cool down
add mayonnaise, egg, bread , seasoning and shape into 30 gm flat round cakes
heat oil and shallow fry on both sides till crisp
for the sauce, whizz chipotle chillies with mayonnaise add some lime juice and zest.