Ingredients

1/4 cup extra-virgin olive oil 

2 small red onions, chopped 

6 cloves garlic, minced 

1 tablespoon peeled and chopped fresh ginger 

1 jalapeno chile, seeded and minced 

Kosher salt and freshly ground pepper 

2 large tomatoes, coarsely chopped 

1 cup fresh cilantro, roughly chopped 

6 cardamom pods 

1 tablespoon cumin seeds 

Pinch of red-pepper flakes 

1 tablespoon Biryani Spice Blend 

1/2 cup plus 2 tablespoons tomato paste 

Preparation

Heat oil in a medium saute pan over medium. Add onions, garlic, ginger, and jalapeno; season with salt and pepper. Cook, stirring occasionally, until softened, about 5 minutes. Add tomatoes, cilantro, cardamom, cumin, red-pepper flakes, spice blend, tomato paste, and 1/2 cup water.

Transfer to a food processor and process until mixture is smooth. Transfer to a medium saucepan. Let simmer on low heat until thickened, about 10 minutes.