Green sauce with the traditional hard-boiled eggs and potatoes. Green sauce on schnitzel. Green sauce on fish. Green sauce on French fries. Even green sauce sorbet and chocolates. These were a few of the treats offered at Frankfurt’s recent Green Sauce Festival.
So what is green sauce exactly? (For, as one festival banner astutely noted, most of the world outside of its hometown Frankfurt is in the dark about “Grie Soβ” – so called in the local dialect, as opposed to the standard German “Grüne Soβe.”)
It’s actually quite tasty, contrary to how it may sound. Sour cream- and yogurt-based with chopped hard-boiled eggs, oil and vinegar. The greenish color comes from a mix of seven herbs, half of which I’ve never heard of before: borage, burnet, chervil, chives, garden cress, parsley and sorrel.
As I mentioned, this creamy sauce is traditionally served with more hard-boiled eggs and potatoes, usually along with Frankfurt’s sour specialty drink: apple wine. But at this small street festival, bordered by food trucks and more traditional food and drink stands, Frankfurt went all out experimenting with other possibilities.
In addition, each Frankfurter has their own style of making the local dish. So a contest was held over the week the festival ran to determine whose green sauce is the best this year.
By the way, the green sauce sorbet tasted exactly like you would expect an herb-based ice to taste. Interestingly, the herby “green” taste was complemented by a sweeter layer of strawberry sorbet. The white chocolate truffles filled with green sauce cream were also a mix of herb and sweet flavors, and surprisingly delicious. Well worth a visit just for the creative experimentation with this local sauce.
For more on Frankfurt cuisine: Frankfurt Tourism Site
And to make your own Grie Soß: Green Sauce Recipe