Classic Slow-Simmered Tomato Basil Soup

By Lauren Mitchell, Test Kitchen Director · Reviewed by AislePrompt Editorial · Published 2026-04-07 · Updated 2026-04-07

A nostalgic, old-fashioned tomato soup simmered for depth of flavor, finished with fresh basil for a comforting bowl of pure comfort. This italian-inspired soups ready in about 45 minutes pairs Olive oil, medium, finely chopped Onion, minced Garlic for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 178 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 2 tbsp Olive oil
• 1 medium, finely chopped Onion
• 2 cloves, minced Garlic
• 2 (28-ounce) cans Crushed tomatoes
• 2 cups Vegetable broth
• 1 tsp Dried oregano
• 1/2 tsp Dried basil
• 1/4 tsp Red pepper flakes
• 1/4 cup, chopped Fresh basil
• 1/2 cup (optional) Heavy cream
• 1/4 tsp Salt
• 1/8 tsp Black pepper

Instructions

1. Step 1: Heat 2 tbsp olive oil in a large pot over medium heat. Add 1 medium finely chopped onion and cook for 5-7 minutes until soft and translucent, stirring occasionally.
2. Step 2: Add 2 cloves minced garlic and cook for 1 minute until fragrant, stirring constantly to avoid burning.
3. Step 3: Stir in 2 (28-ounce) cans crushed tomatoes, 2 cups vegetable broth, 1 tsp dried oregano, 1/2 tsp dried basil, and 1/4 tsp red pepper flakes. Bring to a gentle simmer.
4. Step 4: Reduce heat to low, cover, and simmer for 30 minutes to allow flavors to meld.
5. Step 5: Stir in 1/4 cup fresh basil and 1/2 cup heavy cream (if using), then season with 1/4 tsp salt and 1/8 tsp black pepper. Simmer uncovered for 5 more minutes until flavors are integrated.