Beat the butter with a whisk until creamy. Mash the camenbert well with a fork and mix with the butter. Remove the skin from the onion and cut in half. Cut one half into very fine cubes, the other into narrow slices.
Mix the onion cubes and the caraway seeds into the Camembert cream. Arrange the Obatztem on a plate, decorate with the onion slices and dust with paprika powder. Serve with wholemeal bread.