I remember how difficult it was for me to recreate Grüne Sosse in Texas 6 years ago. Two herbs with fresh cucumbery aroma — borage and burnet — were impossible to find. Since they were not available at any local stores or farmers markets, and I tried to grow them, unsuccessfully. Finally, I gave up and replaced them with finely diced cucumber. Who knew a few years later I would find both of them grown by Livin’ Organics farm right here in Spicewood, available almost regularly! This season, Frankfurt-style green sauce is a delicacy I can enjoy more than once during the season.
One of my German friends says Grüne Sosse is a higher-calorie modification of Italian salsa verde. As if herbs, vinegar, and olive oil were not enough for Germans to survive in a colder climate, and they added eggs and fatty cream. Per about 5 oz of chopped herbs, a typical recipe includes 1) 3.5 oz of Schmandt (24% milk fat) and 2) 3 eggs + 3.5 oz vegetable oil + 3 tbsp white wine vinegar + 2 tsp mustard. Does the second part remind you something? Exactly! It’s mayonnaise.
It’s hot and sunny in Texas most of the year, and the ratio of herbs to the mix of sour cream and mayo is different in my recipe. I go for more herbs and less fat. I also skip making mayo and use my favorite Kewpie. In my opinion, this sauce is the best served with soft-boiled eggs and boiled Yukon Gold potatoes. If you want to add proteins, consider seafood — fried or roasted fish, smoked salmon, seared sea scallops, etc.