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

Is there a difference between tomato sauce and tomato soup? ›

Tomato soup tends to be sweeter and more liquidy than tomato sauce, so it's not a perfect 1:1 substitute. We'd avoid using tomato soup for something like pasta sauce, but it can add a nice tomato flavor to dishes.

Can you add milk instead of water to Campbell's tomato soup? ›

For a creamier result, add milk in place of water.

How do you strain tomato soup? ›

Blending and Straining Pureed Tomatoes

Blend to a smooth consistency. You have the option of straining the puree through a strainer for an even smoother soup, but this step isn't necessary. If you do choose to strain the puree, move a spoon through it so that everything is strained except the seeds.

How to make tomato soup that doesn't curdle? ›

Temper the cream first. Add a liitle bit of tomato sauce at a time to the cream until it is warm and then add it all back into the tomato sauce. This will keep it from curdling.

Can I substitute tomato sauce for tomato soup in a recipe? ›

Although it is likely to change the flavor profile more than other substitutes, tomato soup can work as a tomato sauce substitute. A can of tomato soup can replace 1 cup of tomato sauce. However, because the soup has more liquid than tomato sauce, you should reduce another liquid ingredient by 1/4 cup if possible.

How to make 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.

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.

How do you make tomato soup taste less like tomatoes? ›

Add some herbs, garlic, onion and such. Add fewer tomatoes, or omit them entirely. I make a pretty good Parsley Sauce that has no tomato taste at all! Adding a wee bit of dairy, cream cheese, sour cream, half & half, or butter will coat the tongue and cancel some of the acidity.

Why does my tomato soup taste sour? ›

If you don't want to resort to sugar, baking soda, broth or cinnamon, you just have one thing left to do; cook the tomato as little as possible because, perhaps you can't imagine it, but the more tomato it cooks, the more sour it becomes.

How to add more flavor to tomato soup? ›

This probably isn't a surprise, as basil and tomatoes are a delicious duo. But think beyond basil — rosemary and thyme can add earthiness; chives and parsley showered on top add a fresh finish; even freshly chopped mint (maybe with some feta cheese) can add a refreshing pop of flavor to every spoonful.

How to perk up tomato soup? ›

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

Are you supposed to put milk in tomato soup? ›

directions. Put tomato paste in saucepan; add milk or water using empty tomato paste can and rinsing can thoroughly. Add salt and sugar and optional additions if using; stir. Cook on medium, stir and serve.

Is there a substitute for tomato sauce? ›

More Tomato Sauce Substitutes: Ketchup and Tomato Soup

Add spices to tweak the flavor as needed. A bit of basil is a good choice. Tomato Soup: Add a 10 3/4-ounce can of tomato soup. Then, cut one of the wet ingredients in the recipe back by 1/4 cup to account for the extra liquid.

Can I use tomato soup instead of tomato sauce in chili? ›

Making Chili With Canned Tomato Soup

After your meat and vegetable base is cooked, add beans, diced tomatoes, and your canned tomato soup. Many recipes use chicken stock or water to thin out the chili, so this canned soup will act as the replacement.

What is the difference between soup and sauce? ›

Soup is a liquid thing you eat on its own. Sauce is a liquid thing you add to other things. Usually solids. Sauces are generally thicker than soups.

Can you eat sauce as soup? ›

Sauces You Should Be Eating Like Soup:

Microwave Bertolli Vodka Sauce for a tasty and effortless cheesy tomato bisque. Dunk in some toasty garlic bread or top it with a few of the viral TikTok pasta chips. Perfection! Trader Joe's Buffalo Chicken Dip.

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