Creamy Tomato Pasta in 20 Minutes Step-by-step instructions

Before you start

Before starting, boil the penne in salted water until al dente. Reserve about a cup of pasta water before draining. Shred the cheddar and grate the parmesan, and have them ready at room temperature so they melt quickly. Mince the garlic and finely dice the onion.

Measure out the tomato paste, garlic powder, black pepper, and salt. Set all ingredients near the stove. Have a large skillet and a wooden spoon or spatula ready. The whole cooking process moves quickly, so having everything prepped keeps it stress-free.

Instructions

Building the Base

1. 1Melt butter and olive oil
   In a large skillet over medium heat, melt the butter with the olive oil, swirling occasionally until the butter is fully melted and the mixture is hot but not smoking.
   Look for The butter foams gently and the oil shimmers.
   Tip If the butter browns, lower the heat slightly.
2. 2Sauté garlic and onion
   Add the minced garlic and diced onion to the skillet. Cook, stirring frequently, for about 2 minutes until the onion is translucent and the garlic is fragrant but not browned.
   Look for The onion softens and turns glassy; the garlic smells sweet.
   Tip Stir often to prevent the garlic from sticking.

At the end of this phase, the butter and olive oil are melted together, and the garlic and onion have softened until translucent. The mixture should be fragrant and the onion should look glassy, not browned.

The garlic should be tender but not burnt—if it starts to color, lower the heat. The skillet should have a thin layer of seasoned fat ready for the tomato paste.

Caramelizing and Melting

3. 3Caramelize the tomato paste
   Add the tomato paste, garlic powder, black pepper, and salt to taste. Stir to combine, then cook for 3 minutes, stirring constantly, until the paste turns a deep brick-red and begins to caramelize on the bottom of the skillet.
   Look for The paste darkens and releases a rich, roasted aroma.
   Tip The caramelization builds depth—don't rush this step.
4. 4Melt the cheeses
   Reduce the heat to medium-low. Add the shredded cheddar and grated parmesan, stirring until the cheeses melt into the tomato mixture and form a smooth, creamy sauce.
   Look for The sauce turns glossy and coats the back of a spoon.
   Tip If the sauce seems too thick, add a splash of pasta water.

The tomato paste has turned a deep brick-red and smells roasted and sweet. It should be thick and cling to the spoon. After adding the cheeses, they melt into a smooth, creamy sauce with no visible shreds. The sauce should be glossy and coat the back of a spoon. If it looks separated, stir in a splash of pasta water and keep the heat low.

Coating and Finishing

5. 5Toss in the pasta
   Add the boiled penne to the skillet. Toss gently with tongs or a spatula until every piece is coated in the creamy tomato-cheese sauce.
   Look for Each penne tube is evenly coated and the sauce clings.
   Tip Warm the pasta directly in the sauce for best absorption.
6. 6Finish with basil
   Remove the skillet from the heat. Sprinkle the fresh chopped basil over the top and add a few cracks of black pepper if desired. Serve immediately.
   Look for The basil brightens the dish with color and aroma.
   Tip Add basil at the end to keep its freshness.

The penne is added and tossed until every piece is evenly coated. The sauce clings to the pasta, and the dish looks rich and inviting. The fresh basil is sprinkled on top, adding a bright green contrast. The pasta should be tender but still firm, and the sauce should be creamy, not runny. Serve hot with extra cracked pepper if desired.

Common mistakes

One common mistake is not cooking the tomato paste long enough. If it's only heated through, the sauce will taste flat and raw. Cook it until it darkens and starts to stick slightly to the pan—this builds flavor.

Another mistake is overheating the cheese, which can make the sauce grainy or oily. Keep the heat at medium-low when adding the cheeses and stir gently. Also, don't skip the pasta water; it's the best way to adjust the sauce consistency without diluting flavor.

How to tell it’s done

The dish is done when the pasta is fully coated in a creamy, glossy sauce and the cheese has melted completely. The sauce should be thick enough to cling to the penne but still fluid. If it seems too thick, stir in a splash of reserved pasta water.

Taste a piece of pasta to ensure it is tender but still has a slight bite. The sauce should be deeply savory with a hint of sweetness from the caramelized tomato paste. Finish with fresh basil and serve immediately for the best texture.