Step 1

Blend half of the spinach and half of the orange juice until smooth.

Step 2

Add the remaining spinach and orange juice and puree.

Step 3

Once the spinach/orange juice mixture has reached a smooth consistency, pour the mixture into the 2 ice cube trays.

Step 4

Put the ice cube trays in the freezer and let them freeze until solid.

Step 5

When frozen solid, pop the spinach cubes out of the tray and put them in a freezer bag for storage.

Step 6

When you are ready to have a smoothie, put 1 or 2 frozen spinach cubes into the blender with your other ingredients.