SPICED TOMATO SAUCE

Steps:

• Cook onion, garlic, ginger, and spices in oil in a 1- to 2-quart heavy saucepan over moderately low heat, stirring, until onion is softened, about 4 minutes. Stir in vinegar and simmer over moderately low heat 1 minute. Add tomatoes (with juice) and brown sugar, then increase heat to moderate and simmer, stirring occasionally, until slightly thickened, about 30 minutes. Cool slightly, about 5 minutes.
• Purée sauce in a blender until smooth (use caution when blending hot liquids). Serve at room temperature.