Creamy Tomato Basil Soup With Grilled Cheese Croutons

A bowl of creamy tomato basil soup is the sort of meal that makes a cool evening feel organised, even when dinner needs to happen quickly. Silky tomato soup, fresh herbs and crisp cheese toast come together in a simple combination that suits a weeknight, a relaxed lunch or a casual weekend dinner.

The grilled cheese croutons are the fun part. Instead of serving a sandwich beside the soup, you cut the toasted cheese bread into bite-sized pieces and scatter it over the top. Each spoonful brings a little crunch, melted cheese and buttery toast against the smooth tomato base.

This recipe uses pantry-friendly ingredients, with fresh tomatoes or good-quality tinned tomatoes both working well. Australian home cooks can adjust it easily for the season: basil is abundant in warmer months, while dried herbs and long-life tomatoes are useful during a chilly Melbourne or Hobart winter.

Use metric cups and spoons, and keep the texture as rustic or smooth as you like. A stick blender makes the process especially easy, although a standard blender will produce an equally velvety result in batches.

Gather The Ingredients

For the soup, you will need 2 tablespoons olive oil, 1 brown onion, 2 garlic cloves, 2 tablespoons tomato paste, 800 g tinned crushed tomatoes, 500 ml vegetable stock, 1 teaspoon caster sugar, ½ teaspoon dried oregano, ½ teaspoon sweet paprika, 125 ml thickened cream, a large handful of fresh basil, salt and black pepper.

Choose tomatoes with a rich flavour rather than relying on sweetness alone. Australian supermarket brands vary considerably, and a premium tin can make a noticeable difference in a recipe with so few main ingredients. If using fresh tomatoes, select about 1 kg ripe tomatoes, remove any hard cores and simmer them until completely soft.

For the croutons, prepare 4 slices of sturdy sandwich bread, 2 tablespoons softened butter and 120 g grated cheddar, tasty cheese or a mixture of cheddar and mozzarella. Sourdough gives the croutons a pleasing chew, while ordinary white bread creates a softer, nostalgic grilled cheese texture.

A little parmesan can be added to the cheese mixture for savoury depth. For a vegetarian meal, check the label on vegetable stock and cheese, as animal-derived ingredients can vary between brands. Keep cream, cheese and stock chilled according to the package directions until needed.

Build A Rich Tomato Base

Warm the olive oil in a large saucepan over medium heat. Add the finely chopped onion and cook for 5–7 minutes, stirring occasionally, until soft and translucent. Add the garlic, tomato paste, oregano and paprika, then stir for about one minute. Cooking the paste briefly deepens its colour and takes the raw edge from the garlic.

Add the tomatoes, vegetable stock and sugar. Season lightly with salt and pepper, bring the mixture to a gentle simmer, then cook uncovered for 20 minutes. Stir from time to time, especially if your saucepan is wide and the liquid is reducing quickly.

Turn off the heat and add the basil. Blend the soup until smooth with a stick blender, or cool it slightly before transferring it to a blender. Remove the centre cap from a standard blender lid and cover the opening with a folded tea towel so steam can escape safely. Blend in small batches and never fill the jug to the top.

Return the soup to low heat and stir through the cream. Warm it gently without allowing it to boil hard, as vigorous boiling can make the dairy split. Taste and adjust the salt, pepper or sugar. Some tinned tomatoes are naturally sharp, so the small amount of sugar should be treated as a balancing ingredient rather than a way to make the soup sweet.

Make The Golden Cheese Bites

Butter one side of each bread slice. Place two slices butter-side down in a frying pan over medium-low heat, add the cheese evenly, then cover with the remaining bread, butter-side up. Cook slowly for 3–4 minutes per side until the bread is deeply golden and the cheese has melted through.

Low heat matters here. A hot pan can burn the bread before the centre softens, particularly with thick sourdough. If the cheese is slow to melt, cover the pan for a minute while the sandwich cooks. Let the grilled sandwiches rest for two minutes, then cut them into cubes.

For a larger batch, arrange the buttered sandwiches on a lined baking tray and cook at 200°C conventional or 180°C fan-forced until golden, turning once. This is handy when feeding a family or preparing lunch for several people. A little grated cheese may escape onto the tray and become crisp; those browned bits are ideal scattered over the soup.

The soup can be made while the sandwiches cook, but prepare the croutons close to serving time for the best contrast. If they sit in hot soup for too long, they will soften. Keep a few pieces aside and add them at the table for extra crunch.

Choice	Best result	Useful adjustment
Tinned crushed tomatoes	Reliable flavour all year	Choose a good-quality brand and adjust acidity
Fresh ripe tomatoes	Bright, seasonal taste	Simmer longer to reduce excess water
Thickened cream	Smooth, rich finish	Add off the boil to prevent splitting
Coconut cream	Dairy-free alternative	Use slightly less and add extra black pepper
Cheddar	Classic grilled cheese flavour	Grate it finely for faster melting
Mozzarella blend	Stretchy, mild croutons	Add parmesan for more savoury flavour

Adjust It For Australian Kitchens

This soup fits neatly into Australian home cooking because most of the ingredients are easy to find at Coles, Woolworths, Aldi, local grocers or weekend farmers’ markets. In Brisbane and Perth, fresh basil may be available for much of the year, while cooks in Canberra or regional areas may rely on potted herbs or frozen basil during colder months.

The recipe is also practical for Australian pantry habits. Tinned tomatoes, stock and pasta are common cupboard staples, and the remaining cream can be used in a pasta sauce or mashed potato. If the soup is too thick after refrigeration, loosen it with a splash of water or stock while reheating.

For a lighter bowl, replace half the cream with milk, evaporated milk or unsweetened oat milk. The soup will be less rich but still smooth. For a vegan version, use olive oil instead of butter, plant-based cheese and coconut cream or a plain unsweetened cooking cream. Check product labels carefully, as “plant-based” products can differ in salt and melting quality.

Australian food safety guidance makes storage straightforward: refrigerate leftovers promptly in shallow containers and use them within 3–4 days. The familiar two-hour/four-hour rule is useful when serving at a gathering: food left between 5°C and 60°C for less than two hours can be chilled, while food held in that range for longer should be treated with caution. Reheat soup until steaming hot, and make fresh croutons if the original ones have gone soft.

Serve And Store It Well

Ladle the hot soup into warmed bowls and finish each serving with grilled cheese croutons, torn basil leaves, cracked black pepper and a small drizzle of olive oil. A pinch of chilli flakes works well for adults who enjoy heat. Serve with a green salad or simple cucumber salad if you want a more substantial meal.

The creamy tomato soup is suitable for meal preparation, but store the croutons separately in an airtight container. Reheat the soup in a saucepan over medium-low heat, stirring frequently. Avoid a rolling boil, especially after cream has been added. You can also microwave a portion in a covered, microwave-safe bowl, stirring halfway through and allowing space for steam to escape.

For more everyday ideas that use practical ingredients and flexible methods, browse the recipe collection for salads, baked dishes, soups and easy family meals. This recipe can also become a pasta sauce when reduced, a base for cooked rice or a filling for a savoury pie.

The flavour often improves overnight as the tomato, garlic and basil settle together. If making it ahead, keep the cream separate until reheating for the smoothest finish. Add a fresh spoonful of cream and new basil just before serving to restore its colour and freshness.