Preheat the oven to 350 degrees F.
In a bowl, stir together the berries, sugar and 1/2 cup pomegranate arils.
Place the flour, baking powder, salt, sugar, butter and vanilla beans in a food processor and pulse until the butter is in small crumbs. Stream in the buttermilk and vanilla extract until a dough comes together. It will be wet and sticky!
Remove the dough and add it to a bowl. Fold in the remaining pomegranate arils.
Place the sugared berries in a skillet. Top the mixture with the cobbler dough evenly. Sprinkle sliced almonds on top.
Bake for 40 to 45 minutes, until golden and cooked through. Sprinkle the cobbler with powdered sugar and serve with ice cream or whipped cream.