Gather fresh oregano leaves, a clean glass jar, and a carrier oil such as olive oil
Wash the oregano leaves thoroughly and let them dry completely
Lightly crush the leaves to release their oils
Fill the jar with the crushed oregano leaves
Pour the carrier oil over the leaves until they are fully covered
Seal the jar tightly
Place the jar in a warm, sunny spot for 1 to 2 weeks
Shake the jar gently every day
Strain the oil through cheesecloth or a fine mesh strainer into a clean container
Store the finished oil in a dark glass bottle in a cool, dark place