Why This Recipe Works

Fire-roasted sweetness: Roasting the peppers concentrates their sugars, adding smoky complexity without any extra gadgets.
Two-tomato depth: A hit of tomato paste caramelized in olive oil plus crushed tomatoes gives brightness and body.
Cream, not heaviness: Just enough heavy cream to round the acid, but still light enough for springy twirls of spaghetti.
Hands-off blender silkiness: Puréeing produces a velvety texture that clings to every noodle—no straining required.
One-pan convenience: Sauce finishes in the same skillet you used for aromatics, saving dishes and deepening flavor.
Freezer hero: Doubles beautifully and thaws like a dream for emergency comfort food.
Vegetarian, with vegan option: Swap coconut milk and cashew cream for a dairy-free rendition that still feels indulgent.

Ingredients You'll Need

Ripe, glossy red bell peppers are the star here—look for peppers with tight, shiny skin and a sweet aroma at the stem. If you can find Romano or shepherded varieties, their elongated shape roasts even faster, but everyday bell work perfectly. The second most important component is the tomato: use a fire-roasted crushed variety from a trusted brand (I reach for Muir Glen) for built-in charred notes. For the cream, I splurge on local dairy with at least 36 % butterfat; it whisks in without curdling and reheats like a champ. Garlic should be firm and heavy; skip any with green shoots unless you want extra bite. Fresh basil is optional but highly recommended in summer—its perfume lifts the sauce just before serving. Finally, a hunk of good Parmigiano-Reggiano for grating makes all the difference. If you need a vegan route, nutritional yeast plus a teaspoon of white miso mimics that salty-savory depth.

How to Make Creamy Tomato And Roasted Red Pepper Pasta Sauce

Roast the peppers

Heat oven to 450 °F (230 °C). Halve the peppers, remove seeds and membranes, and press lightly so they lay flat on a parchment-lined sheet. Drizzle with 1 tablespoon olive oil and a pinch of salt. Roast 20 minutes, then switch to broil for 3–4 minutes until skins blister. Transfer hot peppers to a bowl, cover tightly with foil, and let steam 10 minutes; this loosens the skins so they slip off effortlessly.

Sweat the aromatics

While the peppers cool, warm 2 tablespoons olive oil in a heavy skillet over medium heat. Add minced onion and cook 4 minutes until translucent. Stir in tomato paste; let it caramelize for 2 minutes until brick red. Add garlic and red-pepper flakes; cook 30 seconds until fragrant.

Build the base

Pour in crushed tomatoes, ½ cup vegetable broth, and 1 teaspoon sugar to balance acidity. Simmer 10 minutes, scraping up the fond for extra flavor.

Blend with peppers

Peel the roasted peppers (skins should slide off easily) and add to blender along with the tomato mixture. Blend on high for 60 seconds until absolutely smooth. Return to skillet.

Enrich with cream

Lower heat to medium-low. Stir in heavy cream and simmer 3 minutes; do not boil or the cream may separate. Season generously with salt and freshly ground black pepper.

Marry with pasta

Cook pasta of choice in well-salted water until 1 minute shy of al dente. Reserve ½ cup starchy water, drain, and add noodles directly to the sauce. Toss 1–2 minutes over low heat, adding pasta water gradually until the sauce glossy-coats each strand.

Finish & serve

Off heat, fold in freshly grated Parmesan and a handful of torn basil. Drizzle with good olive oil and cracked pepper. Serve immediately in warm bowls; pass extra cheese at the table.

Expert Tips

Deglaze with wine

After caramelizing tomato paste, add ¼ cup dry white wine and let it evaporate before the tomatoes. Adds fruity acidity.

Chill for meal prep

Sauce thickens as it cools; loosen with pasta water when reheating and it will taste freshly made.

Char directly on gas

No oven? Spear peppers on skewers and rotate over open flame until blackened; steam and peel the same way.

Brightness boost

A squeeze of lemon at the end wakes up the roasted sweetness and balances the cream.

Double-batch logic

Make twice the sauce, freeze half in silicone ice cube trays, then pop out portions for quick single-serve dinners.

Color retention

Blend in a teaspoon of olive oil with the peppers; the fat emulsifies and keeps the sauce vibrantly orange.

Variations to Try

Storage Tips

Cool the sauce completely, then refrigerate in an airtight container up to 5 days. For longer storage, ladle into quart-size freezer bags, press out air, label, and freeze flat up to 3 months. Thaw overnight in the fridge or submerge the sealed bag in lukewarm water for quicker defrosting. Always reheat gently over low heat; high temperatures can cause the dairy to separate. If separation occurs, whisk in a splash of warm broth or milk to re-emulsify. Cooked pasta mixed with the sauce also freezes well: portion into single-serve containers, drizzle with a tiny bit of olive oil, and freeze up to 2 months; microwave with a loose splash of water to loosen.

Creamy Tomato And Roasted Red Pepper Pasta Sauce