Caramelized Onion with pasta

1/4 cup butter , cubed 2 large sweet onions , thinly sliced 1/4 teaspoon crushed red pepper flakes 1/8 teaspoon salt 8 garlic cloves , minced 2 cups grape[...]

4 tablespoons olive oil 4 red peppers, seeded cut lengthways into 1 cm wide strips 1 large red onion , sliced 300 g dry penne pasta 50 g fresh basil salt &[...]