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5 from 10 votes
Low Carb and Keto Homemade Alfredo Sauce with Basil Pesto in a jar.

Homemade Alfredo Sauce with Basil Pesto

9 9 9
WW Freestyle: 9
Prep Time2 mins
Cook Time8 mins
Resting Time3 mins
Total Time10 mins
AMAZING Homemade Alfredo Sauce prepared with cream, parmesan cheese, and Basil Pesto!
Course: Condiments, Sauce, Side Dish
Cuisine: Italian
Servings: 8 servings
Calories: 202


  • 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.
Nutrition Facts
Homemade Alfredo Sauce with Basil Pesto
Amount Per Serving (2 tablespoons)
Calories 202 Calories from Fat 180
% Daily Value*
Fat 20g31%
Saturated Fat 12g60%
Cholesterol 70mg23%
Sodium 142mg6%
Potassium 47mg1%
Carbohydrates 2g1%
Fiber 0g0%
Sugar 0g0%
Protein 3g6%
Vitamin A 790IU16%
Vitamin C 0.7mg1%
Calcium 104mg10%
Iron 0.1mg1%
* Percent Daily Values are based on a 2000 calorie diet.
Keywords: alfredo sauce, basil pesto, heavy cream, homemade sauce, keto recipes, keto side dishes, low carb recipe, parmesan cheese, pesto pasta recipe