Wash the cranberries and mandarin orange thoroughly to ensure the ingredients look fresh and vibrant inside the jar. Clean produce also helps prevent moisture spots or residue from forming during storage.
Slice the mandarin into thin, even rounds. Thinner slices not only layer neatly but also release more fragrant oils once simmered, enhancing the citrus aroma.
Place the orange slices at the bottom of the jar. Press them gently into place to form a bright, colorful base that will show attractively through the glass.
Add the cranberries on top of the orange slices. Their vivid red color provides a striking contrast, creating a classic holiday palette inside the jar.
Tuck in the rosemary sprigs. Slide them along the side of the jar if possible—the deep green sprigs create height and add a natural, evergreen element.
Add the cinnamon sticks along the side for visual appeal. Their warm brown tones and curled shape make the jar look rustic and festive while contributing bold, cozy fragrance.
Sprinkle the whole cloves on top. They nestle between the larger ingredients and offer a strong spice aroma essential for traditional Christmas potpourri.
Close the jar securely and tie it with ribbon or twine. Attach a gift tag to complete the presentation, turning the jar into a ready-to-give holiday treat.