Frankfurter Green Sauce Recipe: Tangy Herb-Infused German Tradition

This traditional German sauce brings bright, herbaceous flavor to any dish with its tangy, fresh profile. I’ve perfected the balance of seven fresh herbs for an authentic taste.

Simple to make and versatile, it pairs beautifully with grilled meats, potatoes, or hard-boiled eggs. Store it in the fridge for up to 3 days to keep the flavors vibrant.

Ingredients for Frankfurter Green Sauce

Seven fresh herbs and a creamy base make this sauce sing with German tradition.

The herbs are everything here—farmers markets or specialty grocers like Whole Foods have the best selection. Look for vibrant green, un-wilted bunches (especially the chervil and burnet, which can be tricky to find). If your store doesn’t carry one or two, skip rather than substitute—each herb adds a unique note. I grab my sour cream from Trader Joe’s for the right thickness.

Missing a herb? Double up on parsley or chives—they’re the backbone flavors. No sour cream? Greek yogurt at full-fat works, but thin it slightly with milk. Vinegar swaps are easy: apple cider or champagne vinegar both add great tang. The mustard? Any smooth, sharp one (even whole grain in a pinch).

This is best fresh but keeps for 3 days in the fridge. Store in a glass jar with a tight lid. The herbs will soften over time, so use it up quick (or make half a batch).

Step-by-Step Instructions for Frankfurter Green Sauce

This traditional blend comes together quickly with a few key techniques.

Step 1: Prepare and Chop the Fresh Herbs

Start by finely chopping the 1 cup Fresh Parsley Leaves. I prefer flat-leaf parsley for its robust flavor. Use a sharp chef’s knife and rock it back and forth for even pieces. The finer the chop, the more the flavor distributes throughout the sauce.

Next, finely snip the 0.5 cup Fresh Chives with kitchen shears. For the 0.5 cup Fresh Dill Sprigs, remove the stems first, then chop the leaves. Do the same for the 0.25 cup Fresh Tarragon Leaves, the 0.25 cup Fresh Chervil Leaves, the 0.25 cup Fresh Cress, and the 0.25 cup Fresh Burnet Leaves. Each herb should be uniformly small to ensure a consistent texture.

Step 2: Combine the Herbs with Sour Cream

In a medium bowl, add the 1.5 cups Sour Cream. I always use full-fat for the creamiest texture. Gently fold in all the chopped herbs with a silicone spatula. The goal is to distribute them evenly without deflating the sour cream.

Here’s the thing—this step requires a light hand. Overmixing can cause the sour cream to thin out. You want the herbs suspended in the cream, not sinking to the bottom. The mixture should look speckled with green, not uniform.

Step 3: Add the Tangy Elements

Now, add the 2 tbsp White Wine Vinegar and the 1 tbsp Dijon Mustard to the bowl. These ingredients bring the bright, sharp flavor that balances the richness of the sour cream. Stir gently until just combined.

Taste at this point and adjust if needed. If you prefer a bit more tang, you can add another splash of vinegar, but start with the full 2 tbsp—the flavor will meld and mellow as it rests. The Dijon mustard should be smooth to avoid graininess in the finished sauce.

Step 4: Chill and Let Flavors Meld

Cover the bowl with plastic wrap and refrigerate for at least 1 hour. This resting time allows the flavors to deepen and the herbs to infuse the sour cream fully. I’ve found that 2 hours is ideal, but even 30 minutes makes a noticeable difference.

Give the sauce a quick stir before serving. You’ll notice the herbs have softened slightly and the colors have brightened. The sauce should be thick but spoonable, with a vibrant green speckled appearance. Serve chilled for the best texture and flavor.

Flavor Customization for These Flavors

Herb-Forward Variation

For an even greener profile, increase the herbs to 2 cups total. I love adding extra dill and tarragon for their anise-like notes. This version becomes more of a relish than a sauce, perfect for topping brats or smoked sausages. 🌿

Creamy Base Swaps

Swap sour cream for Greek yogurt for a tangier, lighter option. Use full-fat for best results. I’ve also had success with crème fraîche, which adds a subtle nutty depth. Thin with 1-2 tbsp milk if needed.

Spicy Kick

Add ½ tsp prepared horseradish or ¼ tsp cayenne for heat. The horseradish pairs especially well with the vinegar’s tang. I start with ¼ tsp and adjust to taste. This works beautifully with spicy frankfurters.

Sweet-Tangy Balance

For a sweeter note, stir in 1 tsp honey or maple syrup. This balances the vinegar’s sharpness without overpowering the herbs. I prefer honey for its floral undertones. The sweetness also helps mellow the sauce if it’s too bold for kids.

Fresh Herb Shortcuts

If you can’t find all seven herbs, focus on parsley, chives, and dill as your base. These three provide the most authentic flavor foundation. Add 1 tbsp dried tarragon if fresh isn’t available, but reduce to ½ tbsp as dried is more concentrated.

Storage Flavor Boost

Let the sauce sit for 4-6 hours before serving for maximum flavor development. The herbs release more oils over time, deepening the taste. I often make it in the morning for dinner to get this extended melding. 💡

Frequently Asked Questions