I have been searching high and low for a tomato sauce that doesn’t come with “natural favours” or salt and almost impossible to buy it from store. Hence, I have decided to make some for my tots. They love pasta. This is an easy sauce to make, just a little time-consuming. I used the slow cooker instead so that I do not need to watch over the fire. After it is done, you just need to blend to get the texture.

Some key learning points I picked up after making this sauce couple of times:

1. Buy the ripe tomato, I have tried using the big red tomato and cherry tomato and find the latter gave a lighter and more refreshing tomato taste. If you prefer a sweeter tomato taste, use the big ripe ones.

2. Remove the seeds of the tomato before cooking as the seeds can cause bitterness. Similarly for the skin, which causes bitterness, you can either peel it before cooking or simply drain it out using the sieve after blending. Alternatively is to use canned tomato for convenience. Whatever tomato you are using, it will affect the colour of the sauce slightly.

3. If you are making this tomato sauce for older toddlers, you may add basil leaves and bay leaf for fragrance. Some kids do not like the smell of spices so adjust to your kids’ preference.

4. Usually for thicker sauce, there is no need to add water. In my recipe, I added 100-150ml of boiled water (cool or hot) to expedite the cooking and breaking down of the ingredients. Also, I cooked it on stove before transferring to the slow cooker, to avoid burning the ingredients or ingredients sticking at the bottom of the pot while simmering, water is added. Else, you can omit or reduce the amount of water. Part of the water gets evaporated during simmering.

5. This tomato sauce does not taste like Ketchup as there is no vinegar, salt or sugar. If you wish to “transform” the tomato sauce into Ketchup-like, you may add 1.5 teaspoon (7.5ml) of white/red rice vinegar, 1 teaspoon (5ml) of sugar and 1/4 teaspoon (1.25ml) of sea salt to 100 ml of sauce. You may adjust the quantities of the vinegar, sugar and salt to preference.

All ready to cook some pasta or use as topping for pizza?


  • Weighing scale
  • Measuring cup
  • Measuring spoon
  • Pot
  • Slow cooker
  • Blender


  • 3 cloves of garlic, diced
  • 1 onion (approximately 150g), peeled and diced
  • 2 boxes of cherry tomato (approximately 550g) or 6-7 ripe red tomato, de-seed
  • 1 Carrot (approximately 150g), diced
  • 1 red pepper/capsicum (approximately 150g), diced. You may use yellow or green pepper
  • 2 tablespoon of olive oil / coconut oil
  • 100-150ml of water (optional, see content above)
  • 1 bay leaf (optional)
  • Basil leaves (optional)

Serving size: 400-500ml

Tomato Sauce


1. Heat oil in the pan under medium heat, sauté the garlic until fragrant. Add onion and sauté until onion turning translucent. Stir continuously.

2. Add red pepper then carrot and continue to stir fry.

3. Add the tomato, basil leaves (optional), bay leaf (optional) and water. Then bring to boil. You may omit water if you prefer a thicker sauce. Adding some water will enable faster cooking and breaking down of the ingredients.

Tomato Sauce

4. Transfer the pot to the slow cooker and simmer for 2 hours. Discard bay leaf before blending.

5. Blend till smooth, strain the tomato skin using the sieve.

Tomato Sauce

6. Serve immediately or refrigerate or freeze for later use. You can keep few days in fridge and longer in freezer.

Tomato Sauce

Using the big red tomato

Tomato Sauce

Darker red-coloured sauce

Note: If you are serving any of the ingredients to your kid for the first time, do watch out for potential allergy reactions.

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