Sauté the garlic in a pan with a drizzle of olive oil.
Add the friarielli and cook following the instructions. Add then chilli pepper, salt and pepper to taste.
Cut the onions into small slices. Add them to a pan with balsamic vinegar and sugar, stir and let brown.
Cook the pasta in salted boiling water. Drain and add the caserecce to the pan with our friarielli. Add the caramelised onion and some roasted almonds. Serve with some sage.