Bring a large pot of salted water to a rolling boil and cook the pasta for 2 minutes shy from al dente.
Heat 3 tbsp of Danish Creamery Salted Butter in a large skillet. Cook the mushrooms, tossing occasionally until golden and tender, this could take about 4-5 minutes.
Reduce the heat to medium to low, add the garlic, green onion, and Calabrian chili paste. Stir and cook for another minute.
Add the pasta ( the pasta should be cooked 2 minutes shy from al dente), parmesan, fresh parsley, and the cream. Stir everything together and cook the pasta until it is al dente and the liquid has slightly thickened, about 2 minutes.
Add 1&1/2 tbsp Danish Creamery Premium Sea Salted Butter and toss to combine. Taste and add any additional seasoning to your liking.
Top the pasta with freshly grated parmesan and a drizzle of Calabrian chili oil. Enjoy!