Lazy lentil soup with sage and chili

This recipe is loosely based on a recipe of Diane Kochilas from her book Ikaria. She, however, started from scratch with dried lentils and my other ingredients are slightly different as is my method. But hers was the inspiration to use sage and chili which are not ingredients I had used before in lentil soup. 

Ingredients

1 large brown onion

Olive oil

800 gr canned lentils

400 gr diced tomatoes

6 dry sage leaves

3 dried bay leaves

1 tsp Sambal Oelek

2 cloves garlic

Water

1/4 cup red wine vinegar

Mode

Heat some olive oil in large saucepan on high heat

Roughly chop onion

Add to olive oil and stir to cover with oil

Cook for a few minutes stirring occasionally

Meanwhile peel and crush the garlic 

Drain and rinse the lentils

Add the garlic and Sambel oelek to the onions and stir

Add the bay and crushed sage leaves to the mixture and stir

Add the drained lentils and combine

Finally add the tomatoes and stir

Add about two cups of water and stir

Bring the mixture to the boil and reduce to a simmer

Simmer for about an hour stirring occasionally

Just before serving add the vinegar

Remove the bay leaves and any sage stalks

Serve with a drizzle of olive oil and additional vinegar if desired