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Bring a large pot of salted water to a boil for the pasta. While the water heats, thinly slice the red onion into half-moon shapes. Mince the garlic.

In a large skillet or pan, heat the olive oil over medium-low heat. Add the thinly sliced red onions and minced garlic. Sauté, stirring frequently, for 20-25 minutes, or until the onions are deeply caramelized, tender, and a rich golden-brown color. This process requires patience to achieve the desired sweetness.

While the onions are caramelizing, cook the spaghetti according to package directions until al dente. Reserve 1 cup of pasta water before draining.

Once the onions are caramelized, add the chili oil to the pan and stir to combine it with the onions. Cook for 1 minute until fragrant.

Pour the heavy cream into the pan with the caramelized onions and chili oil. Bring the sauce to a gentle simmer, stirring occasionally. Season with freshly ground black pepper and salt to taste. If the sauce is too thick, add a splash of the reserved pasta water.

Add the cooked and drained pasta directly to the simmering sauce in the pan. Toss the pasta thoroughly with tongs or a spatula until all the strands are well coated with the creamy onion sauce. If needed, add a little more pasta water to achieve the desired consistency.

Serve the Caramelized Onion Pasta with Chili Oil immediately. Garnish with extra chili oil or fresh herbs if desired.


Bring a large pot of salted water to a boil for the pasta. While the water heats, thinly slice the red onion into half-moon shapes. Mince the garlic.

In a large skillet or pan, heat the olive oil over medium-low heat. Add the thinly sliced red onions and minced garlic. Sauté, stirring frequently, for 20-25 minutes, or until the onions are deeply caramelized, tender, and a rich golden-brown color. This process requires patience to achieve the desired sweetness.

While the onions are caramelizing, cook the spaghetti according to package directions until al dente. Reserve 1 cup of pasta water before draining.

Once the onions are caramelized, add the chili oil to the pan and stir to combine it with the onions. Cook for 1 minute until fragrant.

Pour the heavy cream into the pan with the caramelized onions and chili oil. Bring the sauce to a gentle simmer, stirring occasionally. Season with freshly ground black pepper and salt to taste. If the sauce is too thick, add a splash of the reserved pasta water.

Add the cooked and drained pasta directly to the simmering sauce in the pan. Toss the pasta thoroughly with tongs or a spatula until all the strands are well coated with the creamy onion sauce. If needed, add a little more pasta water to achieve the desired consistency.

Serve the Caramelized Onion Pasta with Chili Oil immediately. Garnish with extra chili oil or fresh herbs if desired.
