Slow Cooker Sauerbraten Recipe~ Normally it takes 5 days to marinate the roast (you have to turn it every day) and that takes some planning. But this iis one of my favorite German recipes (I&#39;m mostly of German descent). I grew up eating German food and learned from my Gramma how to make all the old country dishes. My husband hates German food *thunks head on table* D&#39;oh!!!!!