Red pepper flakes – Use a pinch for a subtle heat, omit if sensitive to spice. Optional ingredients – Feel free to add other ...

4. Stir in basil, oregano, salt, black pepper, and crushed red pepper; simmer and cook until herbs have flavoured the sauce, about 30 minutes more. 5. Add balsamic vinegar; still well to combine.

Tip for using the zip bag: Pour the sauce inside and start to seal. Leave about a 1 inch gap and gently squeeze to let the air out and then seal completely. Do not fill up the packet full as when ...