If you’ve ever tasted a Kewpee olive burger, you know that tangy, creamy sauce is pure magic. 💚 I’ve been obsessed with recreating that iconic flavor at home, and after countless tests, I finally cracked the code for this legendary condiment that’s been a Midwest secret since 1928.
The beauty of this sauce is its simplicity—just a handful of ingredients that come together into something way more delicious than the sum of its parts. Creamy mayo, briny olives, and a few secret seasonings create that distinctive taste that keeps people coming back for more.
What you’ll end up with is a jar of thick, creamy sauce studded with olive pieces, ready to slather on burgers, sandwiches, or anything that needs a tangy upgrade. It stores beautifully in the fridge for up to two weeks, though I guarantee it won’t last that long.
Ingredients for kewpee olive burger sauce
Here’s everything you need to recreate the legendary kewpee olive burger sauce at home.
| Ingredient | Amount | Notes |
|---|---|---|
| Mayonnaise 🥚 | 1 cup | Full-fat for best texture |
| Green Olives 🫒 | ¾ cup | Pimento-stuffed, chopped fine |
| Dill Pickle Relish 🥒 | 2 tbsp | Sweet or dill works |
| White Vinegar 💧 | 1 tbsp | For tangy brightness |
| Garlic Powder 🧄 | ½ tsp | Not garlic salt |
| Onion Powder 🧅 | ½ tsp | Fresh ground preferred |
| Black Pepper 🌶️ | ¼ tsp | Freshly ground preferred |
| Sugar 🍯 | ½ tsp | Balances the acidity |
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You can find all these ingredients at any grocery store. For the most authentic flavor, I recommend Hellmann's or Duke's mayonnaise—their rich, tangy profiles work best. Look for quality pimento-stuffed green olives in the pickle aisle; Mezzetta and Goya brands offer excellent options. Trader Joe's and Whole Foods carry premium olive varieties if you want to experiment. The dill pickle relish adds complexity, so choose a brand you enjoy eating straight from the jar.
Don't have pimento-stuffed olives? Plain green olives work fine, though you'll miss that subtle sweetness. If you prefer a chunkier texture, pulse the olives in a food processor instead of chopping by hand. Can't find dill relish? Finely minced dill pickles make a great substitute—just drain them well to avoid a watery sauce. For a spicier kick, add a pinch of cayenne pepper or a dash of hot sauce.
Store your olive burger sauce in an airtight glass jar or container in the refrigerator for up to 2 weeks. The flavors actually improve after sitting overnight as the seasonings meld together. Give it a good stir before using since ingredients may separate slightly during storage.
Step-by-Step Instructions for Kewpee Olive Burger Sauce
Let me walk you through creating this iconic Michigan burger sauce that’s been a cult favorite since 1923.
👨🍳 Step 1: Prepare the Olive Base
Start by draining 1 cup of green olives thoroughly and patting them completely dry with paper towels. I can’t stress this enough—excess brine will make your sauce too salty and thin. Once dry, chop the olives into small, uniform pieces about the size of a grain of rice. You want them fine enough to spread easily but not so fine that they turn into paste.
Transfer the chopped olives to a medium mixing bowl. I’ve found that Spanish green olives with pimientos work best because they deliver that signature tangy-sweet flavor that makes Kewpee sauce so distinctive. If you’re using pimiento-stuffed olives, make sure to chop the pimientos along with the olives—that red color adds visual appeal to the finished sauce.
Add 2 tablespoons of finely minced white onion to the bowl with the olives. The onion should be minced extremely fine—almost to the point of being grated. This ensures it distributes evenly throughout the sauce without creating chunks that overpower the olive flavor. If raw onion is too sharp for your taste, you can soak the minced onion in cold water for 5 minutes, then drain and pat dry before adding.
🥘 Step 2: Create the Creamy Mayo Base
Add 1 cup of mayonnaise to the bowl with your olive mixture. I always use full-fat mayo for this recipe—low-fat versions just don’t have the same rich, velvety texture that makes this sauce cling to burger patties. The mayo acts as both a binder and a flavor carrier, mellowing the saltiness of the olives while adding luxurious creaminess.
Next, add 2 tablespoons of sweet pickle relish (drained well), 1 tablespoon of yellow mustard, and 1 teaspoon of white vinegar. These ingredients create that perfect tangy-sweet balance that defines Kewpee’s signature flavor profile. The relish adds sweetness and texture, the mustard brings a subtle sharpness, and the vinegar brightens everything up.
Sprinkle in ½ teaspoon of garlic powder, ¼ teaspoon of onion powder, and ⅛ teaspoon of white pepper. I prefer white pepper over black because it blends invisibly into the sauce while still delivering that peppery kick. These seasonings work in the background to enhance the olive and pickle flavors without announcing their presence.
🍳 Step 3: Mix and Emulsify the Sauce
Using a rubber spatula or wooden spoon, fold all the ingredients together with slow, deliberate strokes. You’re not just mixing—you’re trying to evenly distribute every component so each bite delivers the same flavor experience. I use a folding motion rather than stirring because it’s gentler and prevents the olives from breaking down further.
Continue mixing for 1-2 minutes until the sauce reaches a uniform pale green color with visible olive and relish flecks throughout. The consistency should be thick enough to cling to a spoon but spreadable—similar to tartar sauce. If it seems too thick, you can thin it with 1 teaspoon of pickle juice at a time until you reach the perfect spreading consistency.
Taste the sauce and adjust the seasoning as needed. If it’s too salty (which can happen depending on your olive brand), add another 2 tablespoons of mayo to balance it out. If it needs more tang, add another ½ teaspoon of vinegar. The flavor should be boldly olive-forward with a tangy-sweet finish that makes you want another bite.
⏰ Step 4: Chill and Let Flavors Develop
Transfer the sauce to an airtight container and refrigerate for at least 2 hours before using. I know it’s tempting to dive right in, but this chilling period is absolutely crucial. During this time, the onion mellows, the seasonings bloom, and all the flavors marry together into that cohesive Kewpee taste you’re after.
For the absolute best results, I recommend making this sauce a full day ahead. After 24 hours in the refrigerator, the flavors reach their peak—the olives infuse the mayo with their briny essence, and everything melds into a harmonious sauce that tastes like it came straight from a Kewpee restaurant. The sauce will keep in the refrigerator for up to 1 week in a sealed container.
Before serving, give the sauce a good stir because some separation is natural. Spread generously on burger buns, slather over patties hot off the grill, or use as a dipping sauce for fries. The sauce should be cold when it hits the hot burger—that temperature contrast is part of the classic Kewpee experience that’s delighted Michiganders for generations.
Pro Cooking Tips for This Dish
Ingredient Temperature Matters: Always use room-temperature mayonnaise and let your olives drain at room temperature for 15-20 minutes before chopping. Cold mayo won’t emulsify properly with the olive brine and seasonings, creating a separated, watery sauce instead of that signature creamy consistency. I pull my mayo from the fridge 30 minutes before making the sauce, which allows it to blend smoothly with the other ingredients. Room-temp ingredients also help the flavors meld faster, so you can taste and adjust seasonings more accurately. 🌡️
Olive Chopping Technique: The key to authentic Kewpee texture is chopping your olives into ¼-inch pieces—not too fine, not too chunky. I use a sharp chef’s knife on a cutting board rather than a food processor, which turns olives into mush and releases too much liquid. Pulse-chopping with your knife gives you control over the size and prevents over-processing. Pat the chopped olives with paper towels to remove excess brine before adding them to the mayo base, which keeps your sauce thick and spreadable rather than runny.
Seasoning Balance: The magic ratio is 1 part olive brine to 4 parts mayo, which gives you that tangy punch without making the sauce too salty or thin. I add the brine 1 teaspoon at a time, stirring and tasting after each addition until I hit that perfect balance of creamy and briny. Start conservatively—you can always add more brine, but you can’t take it away. The sauce should taste slightly more assertive than you want on the burger because the beef and bun will mellow it out. 💡
Resting Time is Essential: After mixing, refrigerate your sauce for at least 2 hours (overnight is even better) before serving. This resting period allows the flavors to marry and the olive pieces to soften slightly while infusing the mayo with their briny essence. The sauce will also thicken as it chills, reaching that perfect spreadable consistency. I make mine the night before burger night, which gives me one less thing to worry about and guarantees maximum flavor development. The difference between fresh-made and rested sauce is dramatic. 🔥
Nutrition Facts
95kcal
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Trained in classic French technique but raised on slow-cooked ribs and spicy rubs, she blends culinary skill with smoke and soul.
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