Begin by juicing three mandarin oranges, or extract about 3 tablespoons of juice if using a larger orange. Strain to remove any pulp if a smoother consistency is preferred.

In a mason jar or a similarly sealable container, combine the orange juice, light coconut milk, chia seeds, maple syrup, and vanilla extract. Stir the mixture thoroughly and let it rest for 5 minutes. This resting period allows the chia seeds to begin absorbing the liquid and expanding.

Stir the mixture again to break up any clumps that may have formed. This step is crucial to achieve a smooth pudding texture. Secure the lid tightly on the container and place it in the refrigerator for at least 2 hours or overnight for optimal thickening.

Once the pudding has set, remove it from the fridge and give it a final stir. Top the pudding with a dollop of creamy Greek yogurt and a generous handful of mandarin orange slices.

For a finishing touch, finely grate a small amount of orange zest over the pudding, using the leftover mandarin peel. Sprinkle with a pinch of coconut flakes for a delightful crunch and added visual appeal. Serve immediately and enjoy this refreshing, citrusy treat!