How to pronounce “topnotch” in English

From downstairs as a casual cafe where there's recognizable seafood items like gumbos and chowders. We have a sushi area. I have a raw bar area.And upstairs is my fine dining floor, where the white tablecloths, the fancy linen and silver come out, and we deliver a topnotch, expensive, high-end experience.When I graduated from The Culinary Institute in '78, there was not a part of that -- and this is considered the finest culinary school in the United States -- there wasn't even