Creating the Immune Boosting Winter Citrus Smoothie is straightforward. Follow these steps to prepare your delicious and nutritious drink:

1. Gather all your ingredients on the countertop.
2. Peel and segment the orange and grapefruit, discarding any seeds.
3. Slice the banana into manageable pieces.
4. If using fresh spinach, wash it thoroughly under cold water.
5. In a blender, combine the orange, grapefruit, banana, spinach, honey (if desired), coconut water, and ginger.
6. Blend on high speed until smooth and creamy.
7. Taste and adjust sweetness if needed, adding additional honey if desired.
8. If the mixture is too thick, add more coconut water until you achieve your desired consistency.
9. Pour the smoothie into a glass or container.
10. Serve immediately, garnishing with a slice of orange or sprinkle of ginger on top, if desired.

These steps will help you create an incredible Immune Boosting Winter Citrus Smoothie effortlessly.