Instant Pot penne pasta is pure comfort food at its finest. It’s rich, creamy, and incredibly saucy—but what truly sets it apart is how perfectly the sauce clings to every piece of pasta. Since the penne cooks directly in the marinara sauce, it absorbs all those garlicky, herby tomato flavors as it cooks. The result? A cozy, satisfying dinner made with just a handful of ingredients and almost no effort.
This is the kind of meal you turn to on busy nights when you want something warm, filling, and reliably delicious—without hovering over the stove.
The Secret: Don’t Stir the Pasta
One important tip makes all the difference when cooking pasta in the Instant Pot: don’t stir the dried pasta after adding it.
Unlike stovetop cooking, stirring too early in the pressure cooker can cause the pasta to clump or stick to the bottom. Instead, you’ll layer the ingredients and let the Instant Pot do the work.
Here’s how it works:
- Add the marinara sauce to the Instant Pot.
- Scatter the dried penne evenly over the sauce.
- Pour the water on top—no stirring!
Once the pressure cooking is finished and you release the steam, that’s when everything comes together. A splash of cream transforms the sauce into something luxuriously smooth and creamy, and a good stir brings it all to life.
Why You’ll Love This Recipe
- Minimal prep: Just a couple of minutes to get everything in the pot
- One-pot meal: No draining, no extra pans
- Ultra-creamy texture: The sauce coats every bite of pasta
- Family-friendly: Simple flavors everyone loves
- Perfect for weeknights: Hands-off cooking with reliable results
Ingredients You’ll Need
- 1 (24-ounce) jar marinara sauce
- ½ teaspoon kosher salt
- 12 ounces dried penne pasta
- 1½ cups water
- ½ cup heavy cream
That’s it—simple ingredients, big comfort.
How to Make Instant Pot Penne Pasta
- Add the marinara sauce and salt to a 6-quart (or larger) Instant Pot. Stir to combine.
- Scatter the dried penne pasta evenly over the sauce. Do not stir.
- Pour the water into the empty marinara jar, cover, and shake gently to rinse out the sauce. Pour this water evenly over the pasta—still no stirring.
- Lock the lid and set the pressure valve to Sealing. Cook on High Pressure for 6 minutes. It will take about 13 minutes to come up to pressure.
- When the cook time is up, carefully quick release the pressure.
- Turn off the Instant Pot, add the heavy cream, and stir thoroughly until the pasta and sauce are fully combined.
- Serve immediately while hot and creamy.
Final Thoughts
This Instant Pot penne pasta proves that comfort food doesn’t have to be complicated. With minimal prep, pantry staples, and one simple technique (no stirring!), you get a creamy, saucy pasta dish that feels like it simmered all day.
Serve it as-is, or dress it up with grated Parmesan, fresh basil, or a side of garlic bread. Either way, it’s a recipe you’ll come back to again and again.
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