click to enlarge COURTESY OF VINCENT VAN DOUGHNUT

You ate it here first.

In the last week, all the cool kids on the coasts started buzzing about a sweet treat being served at L.A.'s B Sweet Dessert Bar — the ice cream-stuffed donut.But while the usual media feeding frenzy commenced with comforting predictability, it left one thing out of the story: This time, the brilliant food fusion that has the country talking may well have started in St. Louis.For the past year, Vincent Marsden ofhas been serving a treat he calls "Doughnut Ice Cream Sandwiches," but which sound almost exactly like the stuffed donuts everyone is raving about in Los Angeles. From-scratch Vincent's doughnuts are stuffed with locally made Ronnie's ice cream. Yum!The treat is available only in the Grove, so if you're dying to sample one, stop by soon. They're open from Tuesday through Friday, 6 a.m. to 2 p.m. and 7 a.m. to 2 p.m. on Saturday and Sunday, or until they sell out.So, you got that? This time we're not getting to a food trend right when everyone else gets sick of it. This time, we were ahead of the curve — and what a delicious curve it is.