Combine the basil, oil, and salt in a very strong blender and blend on the highest setting until the basil is completely pureed into the oil, about 2 minutes.
Strain the basil oil through a fine mesh strainer, pressing down on the basil solids with a spatula to extract the oil. You can either discard the solids or freeze them to add to soups or sauces later.
Bottle the basil oil in clean, sterilized bottles or jars and store in the refrigerator for up to 3 weeks. Bring to room temperature for 20 minutes before using as it will be too thick to pour.
Recipe by Cooking With MicheleĀ® at https://cookingwithmichele.com/2021/08/basil-oil/