What's the difference between chowder and chowter?

Chowder

Definition:

(n.) A dish made of fresh fish or clams, biscuit, onions, etc., stewed together.
(n.) A seller of fish.
(v. t.) To make a chowder of.

Example Sentences:

(1) Paramyosin samples obtained from the chowder clam, Mercenaria mercenaria, by different extraction techniques were studied using transient electric birefringence techniques.
(2) With acclaimed dishes of seafood chowder and honey-roast Silverhill duckling coming out of the kitchen, it's a good spot to try the crisp, slightly lemony Emerald Pale Ale.
(3) It’s dinnertime anyway, and Chris texts them the soup menu from a nearby restaurant: Manhattan clam chowder, barley vegetable or chicken orzo?
(4) As well as those daily-changing one pots, such as chilli, Thai curry, a chicken chowder and parsnip soup, all served with rice or breads, Grub also serves reputedly good deli sandwiches and salads.
(5) There are nine homely bedrooms, though some are a little small; the restaurant serves local mussels and scampi, and a signature seafood chowder, available as a main.
(6) Seafood chowder is ubiquitous in Belfast, but MSB chef Andy Rae's version (£5) is light and luxuriously creamy, a sensational seafood lucky dip mined with a little potato and generously seasoned with leek and garlic.
(7) Our plan had been to reach the harbour village of Carnlough, the halfway point, by lunchtime so that we could have chowder and wheaten bread at the Londonderry Arms to fortify us for the final leg back to Belfast.
(8) Their creative cuisine has seduced local Parisians and the place is packed out every lunchtime for dishes such as smoked haddock and cabbage chowder, pork brawn and prune pâté, and lamb chops with broad beans and crunchy puntarella (chicory).
(9) There are recognisable foodstuffs, but mingled in compositions that flout credibility – can there be such a thing as "cold corn chowder lemon bisque with peanuts and dill", or "kiwi mustard"?
(10) Sweetcorn chowder This is a cosy comforting dish for the winter – you can use ordinary potatoes, or add white fish poached in milk, or prawns or bacon.
(11) You eat her burgers and her scotch eggs, her sweetbreads and her chowders, and all you can think is that you will never taste their like again anywhere else.
(12) Taste, and if you like a sweeter chowder, add a spoonful of honey.