In a large frying pan over medium-high heat, warm the grapeseed oil. Add the onion and sauté for about 3 minutes or until onions begin to soften. Add the garlic, ginger, cinnamon stick, bay leaves, coriander, turmeric, cayenne, and cumin. Sauté for about 1 minute, stirring the mixture. Stir in the broth, tomato sauce, sugar and 1 teaspoon of kosher salt. Bring to a boil.