A high-powered blender or NutriBullet — this is the one non-negotiable. A weak blender will struggle with frozen fruit.
Two shallow bowls — shallow is key. You want surface area for toppings, not a deep bowl where everything sinks.
A spatula to scrape every last bit of that smoothie out of the blender
Measuring cups for the fruit and milk
A knife and chopping board for slicing the fresh topping fruit
The blender really does make or break this recipe. A high-speed blender like a Vitamix or NutriBullet handles frozen fruit beautifully and gives you that thick, ice-cream-like texture. A cheap blender can work, but you'll need to stop and scrape the sides more often, and the result won't be quite as smooth.