Overview Sweetbriar is one of those places, you don’t realize you like so much until after you leave.   It’s almost like there’s a delayed reaction to this new-ish American restaurant in the Gramercy/Flatiron neighborhood. And no, this isn’t a fancy fusion American restaurant, but rather New American in its core.  We’ll shortcut it and say that the food shines.  Although it’s American, there are some major skills and technique involved.  The kitchen is helmed by Chef Bryce Shuman, formerly…