Caramelised Onion Pasta

This caramelised onion pasta is packed with the sweetness from the onions, that’s cooked down until it starts to release its flavours. It’s balanced with umami from miso paste, saltiness from vegan cheese, and pasta water to help yield a creamier consistency and give the sauce more body.

This pasta is so simple yet deliciously satisfying – and vegan! This recipe can also easily be made gluten-free by substituting the pasta for a gluten-free alternative.

WHAT I LOVE ABOUT THIS CARAMELISED ONION PASTA

Well first of all, I love caramelised onions – so there’s that. I love also love it because it’s packed with umami from some miso pasta. Adding vegan cheese gives this pasta a bit of saltiness and extra richness.

It’s easy to make, and great to make in big batches – perfect for sharing!

INGREDIENTS YOU’LL NEED TO MAKE THIS PASTA

Caramelised Onions

1 large onion peeled and thinly sliced
1 tbsp vegan butter or olive oil

Water

Pinch salt

Pasta

1/2 lb dry pasta spaghetti or linguine are great options

Mushrooms

1/2 lb mushrooms of choice I used fresh button mushrooms – thinly sliced
1/2 tbsp vegan butter or olive oil
Salt to taste

To Finish

1 tbsp white miso paste
Salt to taste
1/4 cup grated vegan parmesan or other cheese
1/2 cup pasta water or more as needed

Garnish

Chopped parsley or basil
Chili flakes

TO MAKE THIS PASTA

Caramelise the Onions

Heat a large dutch oven or thick-bottomed pot or pan over medium heat. Melt the vegan butter or add in the olive oil.
Add the thinly sliced onions. Cook over medium to medium low heat for 30-40 minutes, mixing every 1 minute or so, until caramelised.
Halfway through caramelising the onions, you can add some water to help deglaze the pan. You can also add a pinch of salt.
Remove the onions from the pan/dutch oven.

Cook the Pasta

Meanwhile, heat a pot of water.
Generously season the water and then add in the pasta once it starts to boil.
Cook your pasta until al dente. Be sure to set aside at least 1 cup pasta water.

Sauté the Mushrooms

In the same dutch oven or pan, melt some vegan butter or add olive oil.
Add in the mushrooms. Cook the mushrooms over medium high heat until the sides start to brown and are cooked.

Finishing the Pasta

Add the caramelised onions back into the pan or pot with the mushrooms.
Add the al dente pasta, miso paste, salt to taste, vegan cheese, and pasta water. Mix everything well until the sauce starts to thicken and coat the pasta. Feel free to season the pasta with more salt or cheese, to taste, if needed.

SERVE AND ENJOY!

Garnish with fresh basil or parsley and chilli flakes, if desired. Enjoy immediately while hot.

MORE RECIPES YOU MIGHT LOVE

Caramelised Onion Pasta

5 from 3 votes

This caramelised onion pasta is packed with the sweetness from the onions, that’s cooked down until it starts to release its flavours. It’s balanced with umami from miso paste, saltiness from vegan cheese, and pasta water to help yield a creamier consistency and give the sauce more body. This pasta is so simple yet deliciously satisfying – and vegan.

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Prep Time 15

Cook Time 35

Total Time 50

Course Main Course

Cuisine Fusion, Italian

Servings servings

Calories 350 kcal