Make homemade ginger garlic paste in about 10 minutes for curries, marinades, soups, and stir-fries. Refrigerate a small amount for short-term use and freeze the rest in portions.
Peel and clean the fresh ginger and garlic. Chop the ginger into 1 inch chunks.
Transfer them to a bowl of water and wash them well a couple of times to remove any dirt. Pat them dry.
Transfer them to a blender jar and blend until you get a slightly chunky paste.
Add oil or salt (or both) if needed, and blend again. Transfer to a glass jar.
Notes
Scrape ginger skin with the edge of a teaspoon and chop it into small pieces before blending. Rinse and dry the ingredients and use a clean blender and container. Optional salt is for seasoning; a little salt or a layer of oil is not a tested preservation method. Refrigerate promptly at 40°F / 4°C or below and use within 4 days, or freeze portions promptly for up to 3 months for best quality. Do not rely on smell or appearance to judge whether paste kept too long is safe.