Oven-toasted oat streusel with sweet-tart brambleberry jam of blackberries and blackcurrants layered throughout vanilla ice cream. I first made this flavor in 2009 for a collection highlighting the flavors and culture of Appalachia. It's inspired by the brambly berry bushes of blackberries and blackcurrants that grow all over the hillsides of the Appalachian foothills - the ones I would pick as a child. The oat streusel is a family recipe. Brambleberry Crisp was such a superstar that we now make it year-round. - Jeni. Grass-gazed Ohio milk. Certified B Corporation. jenis.com.