How can I reduce the sliminiess of okra?
If you're simmering it in a decent amount of liquid for a while, like curry, the slimy stuff (mucilage) will all go out into the curry and end up just thickening it. The okra itself won't be slimy. This is one of the traditional ways to thicken gumbo! Even just stewed okra, with a decent amount of tomatoey goop, usually isn't very slimy.