This homemade slow cooker tomato soup is packed with flavour. For the most amazing soup, it's best to use fresh flavourful tomatoes.
This recipe contains the following allergens. Click on the allergen to search for alternative recipes.
Made by Véronique
Published at 2021-02-12, this recipe is for 8 persons and takes 8 hours 20 minutes.
Founder of Ohmydish (since 2014), she prefers to spend all day in the kitchen. Once working in the hospitality industry as an independent chef, she loves helping you gain confidence in the kitchen. With her easy-to-follow recipes, handy tips, and cooking knowledge, you'll make the most delicious dishes yourself! The recipes are accessible to everyone, from beginners to advanced home cooks.
Updated at: 2025-10-25
Rinse the tomatoes, remove the hard part and roughly chop the tomatoes. You can add them directly to the slow cooker while cutting the remaining tomatoes.
Peel and roughly chop the onions and garlic cloves. Add this to the slow cooker along with 2 cubes of vegetable stock.
There's no need to add water, there is enough moisture in tomatoes. Set the slow cooker to the lowest setting and let it cook slowly for about 8 hours.
As soon as the tomatoes, onion and garlic have softened, you can puree them. The easiest way is to use an immersion blender for this. A blender is also possible, but that is less convenient.
Once the soup is smooth, you can optionally add macaroni or vermicelli and set the slow cooker on the highest setting for another half hour.
Season the soup with salt and pepper and serve with (fresh) oregano if desired. Enjoy!
Per 1 serving / piece:
| Amount | Ingredient | Allergens | Kcal | Carbs | Carbs of which sugars | Fat | Fat of which saturated | Protein | Fibers | Sodium | Iron | Calcium | Magnesium | Potassium | Phosphorus | Copper | Zinc | Iodine | Selenium | Vitamin C | Vitamin D | Vitamin A | Vitamin B1 | Vitamin B2 | Vitamin B6 | Vitamin B12 | Vitamin B11 | Vitamin E | Vitamin K | Vitamin K1 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.31 | kilo | of tomatoes | 59.38 | 9.06 g | 9.06 g | 0.63 g | - | 3.13 g | 3.13 g | 25.00 mg | - | 43.75 mg | 31.25 mg | 928.13 mg | 81.25 mg | 0.16 mg | 0.31 mg | - | - | 65.63 mg | - | 0.13 mg | 0.13 mg | 0.06 mg | 0.25 mg | - | 21.88 µg | 1.56 mg | 23.44 µg | - | |
| 1 | clove | garlic | 4.20 | 0.84 g | 0.03 g | - | - | 0.18 g | 0.06 g | 0.12 mg | 0.04 mg | 5.10 mg | 0.60 mg | 18.00 mg | 3.90 mg | 0.01 mg | 0.03 mg | 0.05 µg | - | 0.42 mg | - | - | 0.01 mg | - | 0.01 mg | - | 0.12 µg | - | - | - | |
| 0.38 | onions | 16.88 | 2.86 g | 2.86 g | 0.09 g | 0.05 g | 0.56 g | 1.17 g | 4.22 mg | 0.23 mg | 14.06 mg | 4.69 mg | 82.03 mg | 19.69 mg | 0.04 mg | 0.38 mg | - | - | 3.05 mg | - | - | 0.01 mg | 0.01 mg | 0.06 mg | - | 4.69 µg | - | - | - | ||
| 0.25 | cube | vegetable stock | celery | 0.15 | - | - | 0.01 g | 0.01 g | 0.01 g | - | 9.25 mg | 0.01 mg | 0.10 mg | 0.01 mg | 0.10 mg | 0.08 mg | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| macaroni or vermicelli | gluten | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| fresh oregano | 0.93 | 0.13 g | - | 0.03 g | 0.01 g | 0.03 g | 0.04 g | 0.05 mg | 0.13 mg | 4.00 mg | - | 4.00 mg | 0.50 mg | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |||
| 81.53 | 12.89 g | 11.95 g | 0.76 g | 0.06 g | 3.91 g | 4.39 g | 38.64 mg | 0.41 mg | 67.01 mg | 36.55 mg | 1032.26 mg | 105.41 mg | 0.20 mg | 0.72 mg | 0.05 µg | - | 69.09 mg | - | 0.13 mg | 0.15 mg | 0.08 mg | 0.32 mg | - | 26.68 µg | 1.56 mg | 23.44 µg | - | ||||
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