Fry Vigan longganisa with extra virgin olive oil in a pan.
Mash and cook the longganisa until it resembles ground meat.
Remove longganisa from the pan and leave oil in the pan.
In the same pan, add garlic, onions and tomatoes and saute.
Add cooked longganisa and continue sauteing.
Add sherry wine vinegar, broccoli rabe and pasta water.
Add linguine pasta and toss with cooked ingredients until all ingredients are well incorporated.
Add parmesan cheese and chili flakes and continue tossing.
Transfer to a platter and top with fried egg.