First, put the pastrami slices on a flat surface. Using a knife, spread a generous layer of cream cheese over the entire slice.
Then add the previously chopped or ground walnuts and put around 8 blackberries on one edge.
Once all ingredients are on the pastrami, roll them and put the rolls in the fridge for about 1 hour.
Take out of the fridge before serving, and if you want, you may cut the rolls in 2 to make appetizers.
