A pick-me-up that can be tart or sweet, depending on your apple. For a more tart flavor, a green apple works well, and for a bit sweeter, use a red variety like Fuji.
Place all ingredients in a blender except for the seed mixture. If you prefer blending some or all of the optional seed mixture add that to the blender too.
Blend all ingredients until smooth, roughly 30 seconds, depending on your blender.
Taste and adjust to your liking.
Top with seed mixture if you did not blend it all.