white wine vinegar or apple cider vinegar or white vinegar
Place the flowers into a glass jar.
Completely cover the flowers with your chosen vinegar. You may find that the flowers float. You can use a weight to hold them under the vinegar if you wish. I fold a small piece of baking paper over a few times and place it on top of the flowers.
Add the lid to your jar and let it sit in a cool place to infuse for at least 1 - 3 weeks. After a few days you will notice that your vinegar is turning a lovely shade of orange, red or yellow, depending of what colour flowers you use.
When ready, strain out the nasturtium flowers and store your infused vinegar in an airtight glass jar in the cool pantry.
This lovely infused vinegar can be used in salad dressings or marinades; as a replacement for vinegar in your cooking.