Slow Cooker Tomato Basil Soup -- The Taste of a Summer You Saved

One week until forty. The countdown is happening whether I participate or not. Dave asked what I want to do for my birthday and I said the same thing I said last year: a day off. One day where nobody needs me, nobody asks me a question, nobody needs lunch packed or a load hauled or a fight refereed. Just me, the kitchen, and whatever I want to cook. That is my birthday wish. It is also my Christmas wish and my every-day wish, but I will settle for August fourteenth.

The garden is in full production mode. Tomatoes are coming in faster than we can eat them, which means it is canning season. Gayle taught me to can when I was a teenager, standing at her kitchen counter with mason jars and a water bath canner and the specific patience required to seal summer into glass. I have not canned in years because I have not had a garden in years, but this year the tomatoes are here and the jars are in the basement and the process comes back like muscle memory: blanch, peel, pack, seal.

I canned twelve quarts of whole tomatoes this weekend, which is enough to last through winter if I am careful. The kitchen was a sauna. The counter was covered in tomato skins. Josie helped by eating cherry tomatoes faster than I could process them. Tyler carried the finished jars to the basement with the reverence of someone transporting treasure. The jars sat on the shelf and glowed red in the basement light and I thought: this is what Nebraska women have been doing for a hundred and fifty years. Putting summer in a jar. Saving warmth for the cold months. Believing that winter will come and pass and the garden will grow again.

I also made fresh marinara from the garden tomatoes, garlic, basil, olive oil, a pinch of sugar. We ate it over pasta that night and it tasted like July, like sun, like the dirt Josie planted and the water she poured and the faith that seeds become food. Store-bought marinara will never taste like this. Nothing will ever taste like the thing you grew.

Dave ate the pasta and said we should have a garden every year. I said yes. Josie said obviously. Tyler said can we plant watermelon. I said next year. Next year the garden will be bigger. Next year everything will be bigger. That is what gardens teach you: patience, hope, and the radical belief that next year will be better.

That fresh marinara we ate over pasta—the one that tasted like July and dirt and everything Josie planted—got me thinking about what to do with the next round of tomatoes coming off the vines. This slow cooker tomato basil soup is the answer I keep coming back to: it uses the same garden flavors (tomatoes, garlic, fresh basil, a drizzle of olive oil) but lets the slow cooker do the work while I’m hauling jars to the basement or refereeing whatever fight broke out in the backyard. If you’re in the middle of canning season and swimming in tomatoes, this soup is exactly where those extras should go—and it tastes every bit as close to summer as the marinara did.

Slow Cooker Tomato Basil Soup

Prep Time: 15 minutes | Cook Time: 6 hours (low) or 3 hours (high) | Total Time: 6 hours 15 minutes | Servings: 6

Ingredients

• 3 lbs fresh garden tomatoes (or two 28 oz cans whole peeled tomatoes), roughly chopped
• 1 medium yellow onion, diced
• 5 cloves garlic, minced
• 2 cups chicken or vegetable broth
• 3 tablespoons olive oil
• 1 teaspoon sugar
• 1 teaspoon kosher salt, plus more to taste
• 1/2 teaspoon black pepper
• 1/4 teaspoon red pepper flakes (optional)
• 1/2 cup fresh basil leaves, packed, plus more for serving
• 1/2 cup heavy cream (optional, for a creamy version)
• Crusty bread or grilled cheese, for serving

Instructions

1. Add to slow cooker. Place the chopped tomatoes, diced onion, garlic, broth, olive oil, sugar, salt, pepper, and red pepper flakes (if using) into a 5- to 6-quart slow cooker. Stir to combine.
2. Cook low and slow. Cover and cook on LOW for 6 hours or on HIGH for 3 hours, until the tomatoes are completely broken down and the onion is very soft.
3. Add the basil. Stir in the fresh basil leaves during the last 15 minutes of cooking so they wilt into the soup without losing their brightness.
4. Blend until smooth. Use an immersion blender directly in the slow cooker to puree the soup until smooth. Alternatively, transfer in batches to a blender—be careful with hot liquid, fill only halfway and hold the lid down firmly.
5. Finish and taste. Stir in the heavy cream if using. Taste and adjust salt and pepper as needed. If the soup is too thick, add a splash of broth to loosen it.
6. Serve. Ladle into bowls and top with a few fresh basil leaves and a drizzle of olive oil. Serve with crusty bread or a grilled cheese sandwich on the side.

Nutrition (per serving)

Calories: 165 | Protein: 3g | Fat: 11g | Carbs: 14g | Fiber: 3g | Sodium: 480mg