Boil the spaghetti noodles.
Slice the garlic thinly.
Add olive oil to a pan and sauté the garlic.
Add the onion and cook until it becomes transparent.
Add gochujang and stir-fry over low heat.
Add the cooked noodles and a bit of pasta water, then mix well.
Season with salt and pepper.
Serve on a plate and finish with parsley.