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How To Thicken Spaghetti Sauce

Thick, red, flavorful hearty spaghetti sauce is just exactly what most of us love! No more watery thin sauces when you know how to thicken spaghetti sauce!
Prep Time2 mins
Cook Time5 mins
Total Time7 mins
Course: main
Cuisine: American
Keyword: how to thicken spaghetti sauce
Servings: 4 servings
Calories: 31kcal
Author: Wendi Spraker
Cost: $2


  • measuring cups and spoons
  • can opener
  • Stove
  • wooden spoon
  • serving spoon or small spatula


  • 4 oz tomato paste
  • 1/2 tsp salt kosher
  • 1/2 tsp pepper
  • 1 tsp sugar
  • 1 Tbs Italian Seasoning


  • Heat your thin spaghetti sauce on the stove until simmering. Add 4 oz of tomato paste. Stir well until incorporated.
  • Add the salt, pepper, sugar and Italian seasoning. Stir well, allow to simmer for 5 minutes. Taste and add more seasonings as needed.



  • There are a number of other methods for thickening spaghetti sauce. This is just oe example. Check out the other methods listed on this article. 
  • Depending on the amount of sauce you have, you may need to double this recipe. 
  • The longer you simmer the sauce, the more thick it will become.
  • The tomato paste adds a lovely deep rich color. 


Calories: 31kcal | Carbohydrates: 7g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 515mg | Potassium: 307mg | Fiber: 2g | Sugar: 5g | Vitamin A: 455IU | Vitamin C: 6mg | Calcium: 31mg | Iron: 1mg