Yes, onion paste can be made without cooking the onions first. Raw onion paste is commonly used in many cuisines, especially in Indian cooking, to add a pungent and fresh flavor to dishes.
Making raw onion paste is a simple process. First, peel and roughly chop the onions. Then, place the chopped onions into a food processor or blender. Add a small amount of water, about 1-2 tablespoons per medium onion, to help the blending process. Blend until you achieve a smooth paste consistency. Be careful not to over-blend, as this can make the paste bitter. The paste is now ready to use in your recipes. Remember that raw onion paste has a stronger, more intense flavor than cooked onion paste, so adjust the quantity accordingly.
To reduce the pungency of raw onion paste, you can soak the chopped onions in cold water for about 15-20 minutes before blending. This helps to draw out some of the sulfur compounds that contribute to the strong flavor and can make the paste more palatable.