Slow Cooker Recipe: Tomato Soup ⋆ Design Mom (2024)

By Gabrielle. Photos by Lindsey of Café Johnsonia.

[ Update: Grilled Cheese with Pesto recipe added. ]

When I lived in New York, my friend Sara invited me to lunch at her house, and while we chatted she made grilled cheese sandwiches and warmed up a yummy box of tomato soup from Trader Joes. I adore this meal. It’s on my list of comfort meals for sure. But until Sara served it to me, I had considered it too plebian or boring for guests.

Slow Cooker Recipe: Tomato Soup ⋆ Design Mom (2)

I had a lovely shift in thinking that day. Why wouldn’t I serve this comforting, beloved meal? And why stress out about a fancy meal, when I can be relaxed and enjoy my company — and serve a known crowd-pleaser at the same time?All of sudden, I could invite people over for lunch and it didn’t have to be a big deal. Which means I was more likely to invite someone over in the first place!

Slow Cooker Recipe: Tomato Soup ⋆ Design Mom (3)

I hope it’s safe to say, most people love tomato soup and grilled cheese sandwiches. It’s definitely a favorite around our house. I can tell you I truly don’t raise my eyebrows at boxed soup, but in an effort to eat more whole foods, we have been trying to make more things from scratch. So for today’s recipe in my Slow Cooker Series, it’s all about Homemade Tomato Soup. That said, this soup is made with canned tomatoes. : ) Once summertime arrives, you can switch out fresh-from-the garden tomatoes. But for now this works. It’s pretty much one of those put everything into the slow cooker kinds of recipes, set it and forget it.

I’m always feeding a crowd, so I included a recipe to feed 10-12. If you have a smaller family, don’t worry, just halve all of the ingredients. However, I will say the leftovers don’t go to waste! They are great to send in a lunch box or pull out for a quick meal the next day.

Slow Cooker Tomato Basil Soup
Adapted slightly from Big Girls, Small Kitchen.
Makes 10-12 servings

Ingredients:
3 large carrots, peeled and roughly chopped
2 celery stalks, diced
2 medium sweet onions, roughly chopped
4 cloves garlic, peeled and left whole
2-3 teaspoons salt (start with less and add to taste)
1/4 teaspoon fresh ground black pepper
4 (28-ounce) cans whole peeled tomatoes
1 quart low-sodium organic free-range chicken broth
1/4 to 1/2 cup fresh basil leaves, roughly chopped, plus more for garnish
half and half or heavy cream (optional)
Freshly grated Parmesan (for garnish, optional)

Slow cooker Version:
Place all of the ingredients, except for half and half and Parmesan into a very large slow cooker. Top with the lid and cook on high for 4 hours or low for 5-7 hours. The vegetables should be very soft at that point. If not, cook for another hour or so.

Use an immersion blender to puree the soup. Alternatively, work in batches and puree soup in traditional blender. Be extra careful and don’t fill the blender too full, or it will splatter and escape from the lid.

To the pureed soup, add the half and half. Taste and add more salt and pepper, if needed. Ladle into bowl and sprinkle with freshly grated Parmesan and extra basil.

Serve with biscuits, hot rolls, grilled cheese sandwiches, or breadsticks and a large green salad.

Stove-top Version:

Combine all ingredients in a heavy lidded pot or Dutch oven over medium-high heat. Bring to a boil, then turn heat down to low, and simmer, covered, for about 2 hours, until flavors are blended and vegetables are soft. Allow the soup to cool slightly. Then puree in batches in a blender until very smooth. If you like a thinner consistency, add a little bit more stock or water. Serve immediately, or transfer the soup back to the pot and keep on low until your guests arrive.

Garnish with more fresh basil and some grated Parmesan cheese.

Slow Cooker Recipe: Tomato Soup ⋆ Design Mom (5)

Pesto Grilled Cheese Sandwich
To make about 6-8 sandwiches

Note – this pesto has much less oil than traditional recipes so it doesn’t saturate through the bread and make it soggy. Add just enough to make it spreadable.

Ingredients:
1 large loaf sourdough or another kind of bread, sliced
1 lb. mozzarella, sliced
Butter, for cooking
4 cups fresh basil leaves
1/4 cup pine nuts
1/4 cup grated Parmigiano-Reggiano
1-2 garlic cloves
2-4 Tablespoons extra virgin olive oil

Instructions:
1. Have a large skillet or griddle ready.

2. Prepare pesto — place basil, pine nuts, Parmigiano-Reggiano, and garlic in a food processor. Pulse until finely chopped. Add the olive oil a little at a time through the feed hole while pulsing. Scrape down sides as needed.

3. Lay all the bread slices open and place the sliced mozzarella on half of the bread slices. On the other half, spread a little of the pesto. Close the sandwiches and spread butter on the outside of every sandwich.

4. Heat the skillet or griddle to medium-high heat and cook the sandwiches until golden on each side, lowering the heat if necessary so they don’t burn. Serve immediately.

P.S. — Find all the recipes in this series here.

Slow Cooker Recipe: Tomato Soup ⋆ Design Mom (2024)

FAQs

What can I put in tomato soup to make it taste better? ›

10 Simple Ingredients to Add to Tomato Soup
  1. 1) Fresh Rosemary. Kicking off the list is the simplest way to jazz up your tomato soup – fresh herbs. ...
  2. 2) Sauteed Onions. ...
  3. 3) Crispy Bacon. ...
  4. 4) Cream. ...
  5. 5) Chutney. ...
  6. 6) Melted Cheese. ...
  7. 7) Tinned Anchovies. ...
  8. 8) Toasted Pine Nuts.
Mar 21, 2022

Can you give me the recipe for tomato soup? ›

To make this extra easy tomato soup, add butter, onion, a large can of tomatoes, and water to a large pot. (I usually use water in this soup, but stock or broth work, too). Remember, you can use fresh tomatoes – tips for using them are in the recipe below. Bring everything to a low simmer and cook for 40 minutes.

How to make homemade tomato soup thicker? ›

Add flour or cornflour

Put a tablespoon of either into a small bowl and stir in 2-3 tbsp of the soup until you have a smooth mixture. Stir this back into the soup and bring it to a simmer. Cook for a few minutes to allow the starch granules to burst to thicken, and to cook out any flour flavour.

How to make tomato soup more filling? ›

Want to make that bowl of soup more filling? Add a poached egg for a hearty dose of protein. A touch of cumin and chile pepper and a sprinkling of fresh herbs will bring it into shakshuka territory. If you'd rather take a meatier approach, try sautéing hot Italian sausage in the pot before pouring in the soup.

What takes the bitterness out of tomato soup? ›

Add Some Baking Soda

If your tomato sauce is too acidic and verging on bitter, turn to baking soda, not sugar. Yes, sugar might make the sauce taste better, but good old baking soda is an alkaline that will help balance the excess acid. A little pinch should do the trick.

How to add depth of flavor to tomato soup? ›

However, other spices and herbs can be added to some flavor. Rosemary and thyme, chives and parsley, even a zippy cheese such as feta can level up your tomato soup. Don't forget the cream. Add in coconut milk, heavy cream, or butter to give your tomato soup a silky texture.

Do you take skin off tomatoes before making soup? ›

You will want to peel your tomatoes any time you're looking for a completely smooth texture – preparing a hot soup or stew or tomato sauce, for example. A lot of this comes down to preference, though. You do not need to peel your tomatoes if you don't mind the skins.

Why do you put baking soda in tomato soup? ›

- Adding baking soda to tomato soup and tomato sauces helps balance the acidity of the tomatoes. Tomato flavors really shine, and your sauce or soup will not curdle if you add milk. - Adding ¼ teaspoon of baking soda to 1 cup of tomato sauce or soup will make flavors sparkle and become less acidic.

What is the best combination with tomato soup? ›

18 Must-Try Toppings for Your Tomato Soup
  • Chicken.
  • Chickpeas.
  • Bacon Bits.
  • Basil.
  • Green Onion.
  • Quinoa.
  • Macaroni.
  • Grilled Cheese.

Do you have to add milk or water to tomato soup? ›

Tomato soup is better with milk because it makes it creamier. You can add water if you have no milk or want to keep dairy-free but it will change the texture.

What is the difference between tomato soup and tomato bisque? ›

While both are delicious, they are quite different, especially when it comes to the texture. Tomato bisque is thicker and creamier in texture, and calls for the use of milk and/or cream.

Why does my tomato soup taste watery? ›

Sometimes soup just needs to simmer longer to reach the perfect consistency. Check to see if the vegetables are tender, and then taste the broth. If the soup tastes a bit watery, give it more time.

What can I add to tomato soup to make it better? ›

Roast the onions and garlic before adding the tomato base can enhance the flavor, and adding a splash of balsamic vinegar or a drizzle of olive oil can also provide depth. You can experiment with adding a splash of lemon juice or a pinch of sugar to balance the acidity of the tomatoes.

Why is my tomato soup so bland? ›

Always check seasonings and taste-test before serving. If the soup tastes bland at all, a bit more salt will do the trick, that doesn't just apply to this tomato soup recipe but just about anything you'll ever find yourself cooking.

Is milk better than water for tomato soup? ›

Test: Milk-based tomato soup

Unsurprisingly, this soup was noticeably creamier and less tangy and sour than our soup made with only water. It took on an attractive dark, orange-pink color that looked particularly appealing with the little green flecks of pureéd basil floating throughout.

What can I add to my soup to make it tastier? ›

"Ground paprika, turmeric, nutmeg, ground ginger, and other powdered spices add a touch of color and spiciness to broths," she says. As a general rule, use fresh herbs at or near the end of cooking and dried herbs and spices early on. This helps you get the flavors you're looking for in the right balance.

What enhances tomato Flavour? ›

Seasoning Tomatoes With Cream of Tartar

Yes, there are other ways to make your tomatoes taste even better and increase the acidity. There is lemon, vinegar, or my personal favorite, balsamic. Just imagine a tomato bruschetta with a balsamic vinaigrette drizzled on top. Yummy!

How do you balance tomato flavor in soup? ›

Balance with herbs and spices

Herbs and spices can do wonders to balance the acidity in tomato soup. Consider adding a sprinkle of dried basil, oregano, or thyme to enhance the flavors and mask any overpowering acidity. Fresh herbs like parsley or cilantro can also add a burst of freshness to your soup.

What brings out tomato Flavour? ›

More simply put, in just a matter of minutes, salt will cause tomatoes to release their juices, resulting in fruit that's less watery and more intensely flavored. And that's not all! Salt stimulates your salivary glands, causing them to produce the saliva that distributes flavor to your taste buds.

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