Place all the ingredients in a blender and blend until smooth. Add more liquid to help it blend if it's too thick.
Transfer the smoothie to a bowl or container, rinse the blender and prep the next smoothie.
TO ASSEMBLE THE RAINBOW POPSICLES
Carefully layer each color smoothie in a popsicle mold in rainbow order.
Layering the smoothies in the mold is easy. Use a spoon or tablespoon to scoop the smoothie mixture into the mold. It’s natural for the layers to blend a bit, but I have noticed that spooning the smoothies into the mold versus pouring the smoothie in from a glass leaves better results.
Once the molds are filled, add the sticks and freeze the popsicles overnight.
To get the popsicles to release from the mold, fill your kitchen sink with room temperature water. Place the mold in the water, making sure the water does not go above the top of the mold.
Allow the mold to sit in the water for a few seconds.
Begin to wiggle a popsicle free. If it feels tough, allow them to set in the water a few more seconds.
Once all of the popsicles are removed from the mold, enjoy or wrap the extras in plastic wrap and return to the freezer.
This recipe will make A LOT of rainbow popsicles! You can definitely cut each smoothie recipe in half if you'd prefer to not have tons of extra smoothie. If you are opposed to using a small amount of blue food coloring to achieve the blue layer, it's totally fine to skip that layer! If you want to go the all natural route, here is a tutorial for how to make natural blue food coloring, or you can buy natural blue food coloring here or here as well.