Stephanie March -- Here's Her Recipe for Post-Breakup Hotness (VIDEO)

MY LIPS ARE SEALED

One divorce, one trench coat, one killer pair of heels, mix in equal parts anger and confidence ... and you get Stephanie March out Monday afternoon in New York City.

March -- who is in the middle of a nuclear divorce with Bobby Flay -- was not in a chatty mood ... she's letting her lawyers do all the talking for now.

As TMZ first reported, March is fuming over the prenup and Bobby cancelling her credit card.

The battle in court is still to be fought, but whatever you wanna call this ... round 1 goes to Stephanie.