Use brick-style cream cheese, not the whipped tub, and let it soften for about 20 minutes before mixing. Let the pancakes cool completely before filling so the cream cheese stays cold and thick. Assemble the rolls ahead and keep them in the fridge for up to 3 days, then crisp in butter when ready to serve. Uncrisped rolls freeze for up to 2 months; go straight from the freezer to a buttered skillet.