Roasted Red Pepper and Mascarpone Soup

Why does this soup taste like something you’d order with expensive bread on the side?

Roasting the peppers first gives them a deep, almost smoky sweetness, and the mascarpone turns the whole bowl silky without flattening all that flavour.

 

Some soups are really just a way of using up vegetables.

This one is better than that.

The peppers get roasted until the skins blister and the edges darken, which gives the soup a much deeper flavour than simply simmering everything in a pot.

Once they’re blended with tomato, garlic, and stock, the colour turns gorgeous and the texture becomes smooth before the mascarpone even goes in.

Then you stir in that mascarpone and everything softens slightly.

Not bland. Not overly creamy. Just rounder and richer.

A little black pepper, maybe a pinch of chilli, and something crisp on the side is all it needs.

It’s the sort of soup that makes a bowl and a spoon feel like enough for dinner.

 

 

Why You’ll Want a Bowl Tonight

• Deep roasted red pepper flavour
• Silky texture without using loads of cream
• Mascarpone makes it rich and smooth
• Roasted garlic adds sweetness rather than harshness
• Crispy parmesan croutons give the soup proper texture
• Easy to make ahead

 

What You’ll Need

For the Soup

• 6 large red bell peppers
• 1 whole bulb garlic
• 2 tablespoons olive oil
• 1 medium yellow onion, roughly chopped
• 1 tablespoon tomato paste
• 1 teaspoon smoked paprika
• 1/2 teaspoon dried oregano
• 1/4 teaspoon chilli flakes, optional
• 3 cups vegetable stock
• 1/2 cup mascarpone
• 1 teaspoon balsamic vinegar
• Salt, to taste
• Black pepper, to taste

For the Parmesan Croutons

• 3 thick slices crusty bread, cut into cubes
• 1 tablespoon olive oil
• 1/3 cup finely grated parmesan
• 1/2 teaspoon garlic powder
• Black pepper, to taste

To Finish

• 3 to 4 tablespoons double cream or heavy cream
• Fresh basil leaves
• Extra black pepper

A Few Ingredient Notes

Red peppers

Use proper ripe red bell peppers.

This is not the place for pale, underripe peppers because the flavour of the whole soup depends on their sweetness.

You can roast them yourself or use good quality jarred roasted peppers in a pinch, but freshly roasted peppers give the soup a fuller flavour.

Mascarpone

Mascarpone is richer and milder than cream cheese.

It melts into the soup beautifully and gives it that thick, almost velvety finish without adding a sharp cheesy taste.

Garlic

Roasting the garlic changes it completely.

Instead of tasting sharp and raw, it becomes soft, sweet, and almost buttery.

That mellow garlic flavour works much better here than adding several raw cloves straight into the pot.

How to Make Roasted Red Pepper and Mascarpone Soup

1. Roast the peppers

• Heat the oven to 220°C / 425°F.
• Cut the peppers in half.
• Remove the seeds and white membranes.
• Arrange them cut-side down on a large baking tray.
• Rub lightly with 1 tablespoon olive oil.
• Roast for 30 to 35 minutes until the skins are blistered and darkened in places.

Do not worry if the skins look very charred.

That is exactly what gives the peppers their deeper roasted flavour.

2. Roast the garlic

• Slice the very top off the bulb of garlic so the tops of the cloves are exposed.
• Drizzle with a little olive oil.
• Wrap loosely in foil.
• Roast alongside the peppers for about 30 minutes.
• Remove once the cloves are soft and golden.

3. Steam and peel the peppers

• Transfer the roasted peppers to a bowl.
• Cover tightly with a plate or cling film.
• Leave them for about 10 minutes.
• Peel away most of the loosened skins.

You do not need to obsess over removing every tiny piece.

A little char left behind is fine.

4. Start the soup base

• Heat the remaining olive oil in a large saucepan over medium heat.
• Add the chopped onion.
• Cook for 6 to 8 minutes until soft and lightly golden.
• Stir in the tomato paste.
• Add the smoked paprika, oregano, and chilli flakes.
• Cook for another minute.

Cooking the tomato paste briefly takes away its raw edge and gives the soup a richer flavour.

5. Add the roasted peppers and garlic

• Add the peeled roasted peppers to the saucepan.
• Squeeze the soft roasted garlic cloves out of their skins and add them too.
• Pour in the vegetable stock.
• Stir everything together.
• Bring to a gentle simmer.
• Cook uncovered for about 10 minutes.

You are not trying to cook the peppers much more at this stage.

The simmer simply gives all the flavours time to come together.

6. Blend until completely smooth

• Remove the saucepan from the heat.
• Blend the soup until very smooth using a stick blender.
• Alternatively, carefully transfer it to a countertop blender in batches.

Keep blending longer than you think you need to.

The difference between a slightly grainy pepper soup and a really silky one often comes down to another minute of blending.

7. Add the mascarpone

• Return the soup to low heat.
• Add the mascarpone.
• Stir until completely melted into the soup.
• Add the balsamic vinegar.
• Season generously with salt and black pepper.

Do not boil it hard once the mascarpone has been added.

A gentle heat is enough.

Make the Parmesan Croutons

1. Prepare the bread

• Place the bread cubes in a bowl.
• Drizzle with olive oil.
• Add the parmesan, garlic powder, and black pepper.
• Toss until coated.

2. Bake until crisp

• Spread the bread cubes over a baking tray.
• Bake at 200°C / 400°F for 10 to 12 minutes.
• Turn them halfway through.
• Remove once golden and crisp.

Keep an eye on them during the last few minutes.

Parmesan can go from golden to burnt surprisingly quickly.

How to Serve It

• Ladle the hot soup into bowls.
• Spoon a little cream over the surface.
• Swirl it gently with the tip of a spoon.
• Add a generous handful of parmesan croutons.
• Finish with fresh basil leaves.
• Grind over a little black pepper.

The cream should sit visibly on top rather than being stirred completely into the soup.

That gives you the contrast between the bright red soup and those pale swirls.

Getting the Texture Right

This soup should be thick enough to feel creamy but still loose enough to pour easily from a ladle.

It should not have the consistency of a purée.

If yours feels too thick after blending, add another splash of stock.

If it looks too thin, simmer it uncovered for a few minutes before adding the mascarpone.

Remember that the mascarpone will thicken it slightly as well.

How to Get a Stronger Roasted Pepper Flavour

There are a few small things that make a noticeable difference.

• Let the peppers blister properly.
• Roast rather than boil the garlic.
• Cook the tomato paste before adding liquid.
• Use only enough stock to blend the soup smoothly.
• Add the mascarpone at the end instead of drowning the peppers in cream.

The peppers should still be the first thing you taste.

Can I Use Jarred Roasted Peppers?

Yes.

Use around 700 to 750 g drained roasted red peppers.

Pat them lightly with kitchen paper before adding them so you do not water down the soup too much.

The flavour will be slightly different from freshly roasted peppers, but it is still a very useful shortcut.

What to Serve With It

The croutons already make this soup quite satisfying, but it also works well with:

• Grilled cheese sandwiches
• Warm sourdough
• Garlic bread
• A simple green salad
• Mozzarella toast
• Crispy focaccia

A grilled cheese alongside this soup is particularly hard to argue with.

Easy Variations

Make it spicy

Add more chilli flakes or stir in a little cayenne pepper.

Add tomatoes

Roast a handful of cherry tomatoes with the peppers for a slightly sharper, more tomato-forward flavour.

Make it smoky

Add a little extra smoked paprika.

Do not overdo it though, or the paprika starts overpowering the peppers.

Make it lighter

Use less mascarpone and add a little extra stock.

The soup will still be creamy from the blended peppers.

Storage

• Cool the soup completely.
• Transfer to an airtight container.
• Refrigerate for up to 4 days.
• Store the croutons separately at room temperature.

Do not store the croutons in the soup or they will go soft.

Reheating

Warm the soup gently in a saucepan over medium-low heat.

Stir often and avoid boiling it aggressively.

If it has thickened in the fridge, loosen it with a little vegetable stock before serving.

Add the cream, basil, and croutons only after reheating.

Frequently Asked Questions

Can I freeze this soup?

Yes.

The soup freezes well, although dairy-based soups can sometimes change texture slightly.

For the smoothest result, freeze the soup before adding the mascarpone, then stir it in after reheating.

Do I have to peel the roasted peppers?

Not absolutely, but the texture is much smoother if you do.

Once the peppers have steamed for a few minutes, most of the skin should pull away quite easily.

Can I use cream cheese instead of mascarpone?

You can, although the flavour will be tangier.

Mascarpone is softer and more neutral, which lets the roasted pepper flavour stand out more.

Why add balsamic vinegar?

Just a teaspoon sharpens the flavour and balances the natural sweetness of the peppers.

It should not make the soup taste vinegary.

Can I make the croutons ahead?

Yes.

Once completely cooled, keep them in an airtight container for up to 3 days.

If they soften, put them back in a hot oven for a few minutes.

Final Thoughts

Roasted peppers already have plenty of sweetness and depth, so this soup does not need much fussing around.

The roasted garlic softens into the background, the mascarpone makes everything smooth and rich, and the little splash of balsamic keeps it from becoming too sweet.

Then those parmesan croutons come in with the crunch.

Spoon them over generously, add the cream at the very end, and keep the basil fresh rather than cooking it into the soup.

That contrast between smooth soup, crisp bread, fresh basil, and creamy mascarpone is what makes the bowl work.