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Low Carb and Keto Homemade Alfredo Sauce with Basil Pesto in a jar.

Homemade Alfredo Sauce with Basil Pesto

Katerina | Diethood
AMAZING Homemade Alfredo Sauce prepared with cream, parmesan cheese, and Basil Pesto!
Servings : 8 servings
Prep Time 2 minutes
Cook Time 8 minutes
Resting Time 3 minutes
Total Time 10 minutes


  • 1 tablespoon butter
  • 4 cloves garlic, minced
  • 1-1/2 cups Heavy Cream
  • 1/2 cup grated parmesan cheese
  • 1 tablespoon (or to taste) basil pesto
  • salt and fresh ground pepper, to taste


  • Melt butter in a skillet or saucepan over medium heat.
  • Stir in garlic and cook for 20 seconds, or until fragrant.
  • Whisk in the heavy cream and bring to a simmer; continue to cook for 4 to 5 minutes, or until sauce is reduced and begins to thicken.
  • Set heat to LOW and whisk in the parmesan cheese.
  • Whisk in the basil pesto and continue to cook over low heat until smooth and creamy.
  • Season with salt and pepper; taste for seasonings and pesto, and adjust accordingly.
  • If sauce is too thin, add a little more parmesan cheese.
  • If sauce is too thick, whisk in more cream or water.
  • Remove from heat and let stand 5 minutes.
  • Serve right away or let completely cool and refrigerate.


  • Let sauce cool down completely.
  • Store in an airtight container or jar with a lid. 
  • Keep in the fridge for up to 1 week. 
  • Store in an airtight container or heavy-duty freezer bags and keep in the freezer for up to 3 months.


Serving: 2 tablespoons | Calories: 202 kcal | Carbohydrates: 2 g | Protein: 3 g | Fat: 20 g | Saturated Fat: 12 g | Cholesterol: 70 mg | Sodium: 142 mg | Potassium: 47 mg | Fiber: 0 g | Sugar: 0 g | Vitamin A: 790 IU | Vitamin C: 0.7 mg | Calcium: 104 mg | Iron: 0.1 mg | Net Carbs: 2 g

Nutritional info is an estimate and provided as courtesy. Values may vary according to the ingredients and tools used. Please use your preferred nutritional calculator for more detailed info.

Course: Condiments, Sauce, Side Dish
Cuisine: Italian
Keyword: alfredo sauce, basil pesto, heavy cream, homemade sauce, keto recipes, keto side dishes, low carb recipe, parmesan cheese, pesto pasta recipe