Add the tomatoes, stock, lentils and spices from the 'to simmer' list and stir to combine everything.
You can cook the dal in either a regular pan, or a pressure cooker. Regular pan: Place lid on pan, bring to the boil, then immediately turn down to a gentle simmer. Keep covered and cook with regular stirring for around 20-30 minutes until lentils are soft and creamy. Pressure cookerPlace the lid on your pressure cooker with the 15 psi weight. Bring up to pressure and cook for exactly four minutes. Remove from the heat and allow to vent naturally.
Before serving, check consistency and add additional hot water if needed to get a thick - but pourable consistency. Season to taste with cinnamon and salt (if needed). Garnish with fresh coriander.
Notes
Keeps well covered in the fridge for up to three days.Reheat by gently heating through, either on the hob, or in a microwave. Season with cinnamon and garnish with coriander after re-heating.