Heat a large skillet over medium heat and add the butter and olive oil. When the oil shimmers, add the minced onions and cook until translucent. Add the minced garlic and cook 30 seconds, stirring often.
1 cup sweet yellow onion, 2 tablespoons butter, 2 tablespoons olive oil, 2 cloves garlic
Add cumin, salt, ginger, cinnamon, turmeric, cayenne, garam masala, and paprika and cook 1 minute, stirring often.
½ teaspoon kosher salt, ½ teaspoon ground ginger or 1 teaspoon grated fresh ginger, ¼ teaspoon ground cinnamon, 1/8 teaspoon turmeric, pinch of cayenne pepper, ½ teaspoon garam masala, 1 teaspoon sweet paprika, 2 teaspoons ground cumin
Add tomato sauce, reduce heat to low and allow sauce to thicken 5-7 minutes, stirring often.
½ 6-7 ounce can tomato sauce
Add cream and sugar and bring sauce to a low boil. Cook another 8-10 minutes, over low heat, until sauce has thickened a bit.
½ cup heavy whipping cream, 2 teaspoons white granulated sugar
Add the roasted cauliflower to the sauce, mix well and serve.