Peel the purple onion and slice it thinly into rings or small dice. Peel and lightly crush the garlic cloves.
Layer the Jar: In a clean pint-sized glass jar, add a layer of onion slices, followed by a sprinkle of crushed garlic. Drizzle a generous amount of honey over the layer.
Repeat: Continue layering (onion → garlic → honey) until all ingredients are used, ensuring the final top layer is honey.
Seal and Rest: Tightly close the jar with a lid. Let it sit at room temperature for 8 to 12 hours.