How To Improve Store-Bought Tomato Sauce

Ingredients

• 0.5 medium Onion (sliced, keep root end intact for easier handling)
• 1 clove Garlic (peeled and thinly sliced)
• 2 tablespoons Olive Oil (or any neutral oil)
• 0.5 teaspoon Red Pepper Flakes (adjust to taste)
• 2 medium Fresh Tomatoes (diced; can substitute canned diced tomatoes)
• 24 ounces Plain Red Tomato Sauce (jarred, any basic marinara works)
• 2 tablespoons Water (just a splash to loosen the sauce)
• 0.5 teaspoon Granulated Sugar (helps balance acidity)
• 1 tablespoon Fresh Basil (chopped)
• 1 tablespoon Fresh Parsley (chopped)
• 1 tablespoon Unsalted Butter (cut into small pieces)
• to taste Salt (for seasoning)
• to taste Black Pepper (freshly cracked)

Instructions

1. Prepare aromatics

   Slice the half onion thinly, keeping the root end intact, and thinly slice the garlic clove after removing its papery skin.

   Time: PT3M

2. Sauté onion and garlic

   Heat the skillet over medium‑high heat, add 2 Tbsp olive oil, then add the sliced onion, garlic, and a pinch of salt. Toss and cook until the onion becomes translucent and fragrant, about 3 minutes.

   Time: PT3M

3. Add heat and tomatoes

   Stir in ½ tsp red pepper flakes, then add the diced fresh tomatoes. Cook, stirring occasionally, until the tomatoes blister and release some moisture, about 3 minutes.

   Time: PT3M

4. Incorporate jarred sauce

   Pour the 24‑oz jar of plain red tomato sauce into the pan, add a splash (2 Tbsp) of water, and stir to combine.

   Time: PT2M

5. Simmer and season

   Bring the mixture to a gentle simmer, add ½ tsp sugar and a little extra salt if needed, and let it cook for 5 minutes so the flavors meld.

   Time: PT5M

6. Finish with herbs and butter

   Stir in 1 Tbsp chopped fresh basil, 1 Tbsp chopped parsley, and 1 Tbsp butter. Allow the butter to melt fully, then finish with a grind of black pepper.

   Time: PT1M

7. Serve

   Toss the sauce with cooked spaghetti, use it as a dip for calzones, or drizzle over mozzarella sticks. Serve immediately.

   Time: PT1M

Nutrition Facts

Calories

430

Protein

6 g

Carbohydrates

50 g

Fat

20 g

Fiber

5 g

Ingredient Substitutions

• Instead of Onion: Shallot, Leek
• Instead of Garlic: Garlic powder (1/4 tsp)
• Instead of Olive Oil: Vegetable oil, Canola oil
• Instead of Red Pepper Flakes: Cayenne pepper (pinch)
• Instead of Fresh Tomatoes: 1 cup canned diced tomatoes
• Instead of Plain Red Tomato Sauce: Store‑bought pizza sauce
• Instead of Granulated Sugar: Honey (1/4 tsp)
• Instead of Fresh Basil: 1 tsp dried basil
• Instead of Fresh Parsley: 1 tsp dried parsley
• Instead of Unsalted Butter: Olive oil (1 tbsp)

Equipment Needed

• Chef's Knife
• Cutting Board
• Measuring Spoons
• Skillet
• Wooden Spoon or Spatula
• Jar Opener (optional)
• Lid for Skillet (optional)
• Small Bowl (optional)

Critical Steps — Do Not Skip

• Sautéing the onion and garlic to build flavor.
• Simmering the sauce long enough for flavors to meld.
• Finishing with butter and fresh herbs for richness.

Chef Tips from the Video

• Use the freshest herbs you can find; they make the biggest difference.
• Blistering the fresh tomatoes adds a subtle smoky depth.
• Finishing with butter (or a good quality olive oil) gives the sauce a restaurant‑style silkiness.

Troubleshooting

Storage

Refrigerator: Up to 4 days in an airtight container.

Freezer: Up to 2 months; freeze in portion‑size bags.

Room temperature: Not recommended; keep refrigerated after opening.

Make-Ahead Tips

• The sauce can be made up to 2 days ahead; reheat gently on low heat.
• Freeze in zip‑top bags for up to 2 months; thaw overnight in the fridge.

Frequently Asked Questions