Rinse the fresh blueberries or raspberries under cold running water and pat them dry immediately with paper towels. Chop the raw, unsalted walnuts with a chef's knife into coarse pieces. Have all prepared ingredients ready on the work surface.
Spoon the full-fat grass-fed quark or whey cheese into a large bowl. Add half of the patted-dry berries and stir firmly with a spoon so the fruit is evenly distributed throughout the dairy.
Distribute the coarsely chopped walnuts over the quark mixture. Arrange the remaining half of the berries on top of the quark. Then sprinkle the hemp seeds and a pinch of Ceylon cinnamon in an even layer over everything.
Let the bowl stand uncovered for five minutes before serving. This allows the cinnamon flavor to infuse into the quark. Serve the dish immediately after.