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Keto Raspberry Sauce - Bright, Simple, and Low-Carb

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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 4 servings
Ingredients Method

Ingredients
  

  • 2 cups fresh or frozen raspberries
  • 3–5 tablespoons keto sweetener (erythritol, allulose, or monk fruit blend), to taste
  • 2 tablespoons water (add 1–2 more if needed)
  • 1 teaspoon lemon juice (optional but brightens the flavor)
  • 1/4 teaspoon pure vanilla extract (optional for warmth)
  • Pinch of sea salt
  • Optional thickener: 1/8 teaspoon xanthan gum, lightly sprinkled

Method
 

  1. Combine ingredients: Add raspberries, water, sweetener, lemon juice, vanilla, and salt to a small saucepan. If using frozen berries, no need to thaw.
  2. Heat gently: Place over medium heat and cook for 4–6 minutes, stirring occasionally, until the berries break down and release their juices.
  3. Taste and adjust: Check sweetness. Add more sweetener 1 tablespoon at a time until it suits your taste. The sauce should be tangy-sweet.
  4. Thicken (two options): Reduce: Continue simmering 2–4 minutes to thicken naturally.
  5. Xanthan gum: Reduce heat to low and lightly sprinkle xanthan gum over the surface while whisking. Start with 1/8 teaspoon; it thickens as it cools.
  6. Choose your texture: For a rustic sauce, leave as is. For a smooth, seedless finish, press the warm sauce through a fine mesh strainer into a bowl.
  7. Cool: Let the sauce cool for 10–15 minutes. It will thicken further. Serve warm or transfer to a jar and refrigerate.