🥑 Best Keto Burger Sauces
SEO Guide Updated July 2026
Most bottled burger sauces are quietly loaded with sugar — ketchup especially. None of that is necessary for a great sauce; these are all keto-friendly with zero added sugar.
Classic Keto Burger Sauce
Mix 1/2 cup mayo, 1 tbsp yellow mustard, 1 tsp vinegar, 1 tbsp finely chopped pickle, and a pinch of smoked paprika. All the flavor of a classic burger sauce, no ketchup required. This is the sauce built into our Keto Burger recipe.
Sugar-Free BBQ Mayo
Combine 1/4 cup mayo with 1/4 cup of a sugar-free/keto BBQ sauce and 1/2 tsp smoked paprika. Look for a BBQ sauce sweetened with a sugar substitute rather than brown sugar or molasses.
Garlic Aioli
Naturally keto with zero adjustment needed: 1/2 cup mayo, 1 grated garlic clove, a squeeze of lemon, and a pinch of salt.
Spicy Sriracha Mayo — watch the sriracha
1/2 cup mayo with 1–2 tbsp sriracha and a squeeze of lime is low-carb in typical serving sizes, though most sriracha does contain a little sugar. For strict keto, swap in a sugar-free hot sauce instead.
What to avoid
Regular ketchup (very high in sugar), most bottled BBQ sauce, honey mustard, teriyaki, and sweet relish are the usual carb traps hiding in an otherwise keto-friendly burger.
Put it to work
Try any of these on our Keto Burger recipe, or pick "Keto / low-carb" in the Burger Builder's dietary preference option to get a full build automatically adjusted around a no-sugar sauce.
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Frequently asked questions
Is mayo keto?
Yes — traditional mayo is egg and oil with no carbs, making it the best base for keto burger sauces.
Is ketchup keto?
No, regular ketchup is high in added sugar. Use a no-sugar-added ketchup alternative, or lean on a mustard-based sauce instead.
What sauce goes with a keto burger?
A mustard-based mayo sauce, garlic aioli, or a sugar-free BBQ mayo all work well — anything that skips ketchup, honey, and sweet glazes.