I pour the milk into the blender before anything else. Starting with liquid keeps the blades from struggling against dry or frozen ingredients right away. It also helps everything else blend into a smoother consistency without leaving chunks behind.
Next, I add the frozen spinach or kale, followed by the banana and pineapple chunks with their juice. Layering this way means the blender pulls the greens down into the liquid first, which makes for a much smoother final texture.
I sprinkle in the protein powder and toss in ice if I'm using it. This is the point where I decide how thick I want the smoothie, since more ice always means a slushier texture.
I blend everything on high for about 60 to 90 seconds, stopping once to scrape down the sides with my spatula. I keep blending until there are no visible flecks of greens left and the color turns that perfect witchy shade of green.
Once it's smooth, I pour it straight into tall glasses. I like to add a fun straw right away so it's ready to hand off the moment someone wanders into the kitchen.