Tomato sauce is a kitchen staple — versatile, flavorful, and a perfect base for everything from pasta to stews, pizzas, and even shakshuka.
But many store-bought sauces are packed with added sugars, preservatives, and unnecessary extras that don’t fit into clean eating or slimming diets.
The good news? You can whip up a simple, all-natural tomato sauce at home in no time. It’s not only delicious but also savvy for diets like Slimming World, Weight Watchers, or any healthy lifestyle. Here’s how to do it.
Why Make Your Own Tomato Sauce?
- No added sugar or preservatives: You control every ingredient.
- Customisable flavours: Adjust herbs, garlic, and seasoning to your taste.
- Budget-friendly: Use fresh or canned tomatoes to save money.
- Perfect for multiple diets: Gluten-free, dairy-free, low-calorie, and free from processed additives.
Ingredients You’ll Need
- 1 can (400g) of chopped tomatoes or 6-8 fresh ripe tomatoes, chopped
- 1 medium onion, finely chopped
- 2-3 garlic cloves, minced
- 1 tbsp olive oil (optional, or replace with a spray for lower calories)
- 1 tsp dried oregano or mixed Italian herbs
- Fresh basil leaves (optional)
- Salt and freshly ground black pepper to taste
- A splash of balsamic vinegar or lemon juice (for depth and brightness)
- Optional: a pinch of chili flakes for some heat
Step-by-Step Guide
- Prepare the base: Heat the olive oil in a saucepan over medium heat. Add the onion and cook gently until soft and translucent — about 5-7 minutes. If you’re keeping it very low-calorie, you can skip the oil and sweat the onion with a splash of water instead.
- Add garlic: Stir in the minced garlic and cook for another minute until fragrant.
- Add tomatoes and seasoning: Pour in the chopped tomatoes, dried herbs, salt, and pepper. Stir to combine.
- Simmer: Bring the sauce to a gentle boil, then reduce the heat and let it simmer uncovered for 20-30 minutes. Stir occasionally to prevent sticking.
- Finish with fresh herbs and acidity: Just before serving, stir in fresh basil leaves if using, and add a splash of balsamic vinegar or lemon juice to brighten the flavours.
- Blend (optional): For a smoother sauce, use a hand blender to blend to your preferred consistency.
Tips for Keeping It Slimming and Savvy
- Skip the sugar — the natural sweetness of ripe tomatoes and the splash of balsamic vinegar is enough.
- Use fresh herbs when you can — they pack flavour without calories.
- Bulk up your sauce by adding finely chopped veggies like peppers, mushrooms, or carrots for added nutrition and volume.
- Freeze leftovers in portions for quick meals later.
How to Use Your Tomato Sauce
This sauce is incredibly versatile. Use it for:
- Classic spaghetti or zucchini noodles.
- As a base for homemade pizza.
- In soups or stews for a rich tomato kick.
- As a dipping sauce for grilled veggies or lean proteins.