Smoky, Tangy, and Sugar-Free: The Best Keto BBQ Sauce earns that name with tomato sauce, butter, liquid smoke, and powdered erythritol instead of a grain of sugar. It simmers for just 15 minutes and comes out glossy, thick, and properly barbecue-ready. Slather it on anything you would normally sauce, and the carb count stays out of the way.
Smoky, Tangy, and Sugar-Free: The Best Keto BBQ Sauce
Does switching to a low-carb lifestyle mean saying a tearful goodbye to your favorite barbecue sauce? Absolutely not! While traditional store-bought sauces are packed with sugar, this recipe is here to save your summer cookouts. We’re putting rich, smoky barbecue sauce back on the table with a recipe that’s incredibly easy, full of flavor, and perfectly keto-friendly. Get ready to slather this on everything from grilled chicken to pulled pork!
Ingredients
• Makes 1 cup / 240 ml (2 tablespoons per serving)
• 1 cup / 240 g (8.5 oz) tomato sauce
• 2 tablespoons / 24 g (0.85 oz) powdered erythritol
• 1 tablespoon / 14 g (0.49 oz) salted butter
• 2 teaspoons / 10 ml apple cider vinegar
• 2 teaspoons / 6 g (0.21 oz) onion powder
• 1½ teaspoons / 7.5 ml liquid smoke
• 1 teaspoon / 5 ml (0.2 fl oz) fresh lemon juice
• 1 clove garlic, minced
• ¼ teaspoon / 1.5 g (0.05 oz) sea salt
• ¼ teaspoon / 0.5 g (0.02 oz) ground black pepper
Instructions
1. Directions1. In a medium saucepan, whisk together the tomato sauce, powdered erythritol, salted butter, apple cider vinegar, onion powder, liquid smoke, lemon juice, minced garlic, sea salt, and black pepper.2. Bring the mixture to a simmer over medium heat. Reduce the heat to low and let it gently simmer for 15 minutes, stirring occasionally, until the sauce has thickened slightly.3. Remove from heat and taste, adjusting with more salt if desired. Allow the sauce to cool completely before transferring it to an airtight container. Store in the refrigerator for up to 1 week.
Nutritional Information
• Per 2-tablespoon serving:
• Calories: 39
• Fat: 3 g
• Protein: 0.6 g
• Total Carbs: 2.8 g (0.1 oz)
• Dietary Fiber: 0.6 g
• Erythritol: 4 g (0.14 oz)
• Net Carbs: 2.2 g (0.08 oz)
Pro Tips
• For a deeper, more molasses-like flavor, substitute the powdered erythritol with 1 tablespoon (15 ml / 0.5 fl oz) of a brown sugar erythritol blend.
• Add a spicy kick by whisking in ¼ teaspoon of cayenne pepper or a dash of your favorite sugar-free hot sauce.
• For an ultra-smooth, commercial-style texture, use an immersion blender to blend the sauce after simmering.
• If you prefer a thicker sauce, simply let it simmer for an additional 5-10 minutes until it reaches your desired consistency.
FAQ
Q: Is this BBQ sauce really sugar-free
A: Yes, this BBQ sauce is completely sugar-free. It uses powdered erythritol as a sweetener instead of traditional sugar, making it perfectly keto-friendly with only 2.2g (0.08 oz) of net carbs per serving.
Q: How can I make this keto BBQ sauce spicier
A: To add a spicy kick, the recipe suggests whisking in ¼ teaspoon of cayenne pepper or a dash of your favorite sugar-free hot sauce.
Q: How long does this homemade BBQ sauce last
A: You can store this sauce in an airtight container in the refrigerator for up to one week.
Q: Can I make this sauce thicker
A: Absolutely. If you prefer a thicker sauce, simply let it simmer on low heat for an additional 5 to 10 minutes until it reaches your desired consistency.
Pro Tips
- Swap the powdered erythritol for a brown sugar erythritol blend if you want a deeper, molasses-like barbecue flavor without adding sugar.
- For a commercial-smooth texture, blitz the finished sauce with an immersion blender after it comes off the heat.
- The sauce thickens as it simmers and cools; let it go an extra 5-10 minutes over low heat if you want it spreadable rather than pourable.
- Whisk in ¼ teaspoon of cayenne or a dash of your favorite sugar-free hot sauce at the end for a spicy kick.
- Cool the sauce completely before jarring it — it keeps for up to 1 week in the refrigerator.
Frequently Asked Questions
Is this BBQ sauce really sugar-free and keto?
Yes — powdered erythritol replaces the sugar entirely, and a 2-tablespoon serving has 39 calories with 2.2 g of net carbs. It thickens by simmering, not by sugar syrup.
How long does homemade keto BBQ sauce keep?
Up to 1 week in an airtight container in the refrigerator once it has cooled completely. Warm it gently in a saucepan, loosening it with a splash of water if it has thickened in the fridge.
Can I make the sauce thicker?
Just simmer it longer — 5-10 extra minutes over low heat concentrates it to a spreadable consistency that clings to ribs and chicken.
What can I use instead of powdered erythritol?
A brown sugar erythritol blend gives the sauce a deeper, molasses-like flavor while keeping it completely sugar-free.
Recipe card below.
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Smoky, Tangy, and Sugar-Free: The Best Keto BBQ Sauce
Ingredients
Method
- Directions1.
- In a medium saucepan, whisk together the tomato sauce, powdered erythritol, salted butter, apple cider vinegar, onion powder, liquid smoke, lemon juice, minced garlic, sea salt, and black pepper. 2.
- Bring the mixture to a simmer over medium heat.
- Reduce the heat to low and let it gently simmer for 15 minutes, stirring occasionally, until the sauce has thickened slightly. 3.
- Remove from heat and taste, adjusting with more salt if desired. Allow the sauce to cool completely before transferring it to an airtight container. Store in the refrigerator for up to 1 week.
- Add a spicy kick by whisking in ¼ teaspoon of cayenne pepper or a dash of your favorite sugar-free hot sauce.








