Measure your base. Add 1 cup of milk to the blender.
This gives you control over thickness from the start.
Add oats. Add 1/3 to 1/2 cup rolled oats. If you like an ultra-smooth texture, let them soak in the milk for 5 minutes before blending.
Layer the fruit. Add 1 cup blueberries and 1 small banana (or half a large). Frozen fruit makes the smoothie colder and thicker.
Boost the creaminess. Add 1/3 to 1/2 cup Greek yogurt if you want extra protein and a creamy texture.
Skip or replace with dairy-free yogurt if needed.
Flavor it. Add 1/2 teaspoon cinnamon and 1/2 teaspoon vanilla extract. Taste later and adjust as you like.
Sweeten if needed. Add 1 to 2 teaspoons honey or maple syrup if your fruit isn’t very sweet. You can always add more after blending.
Optional nutrition boosters. Add 1 teaspoon chia seeds or ground flaxseed for extra fiber and omega-3s.
Blend until smooth. Start low, then increase speed.
Blend for 45–60 seconds until creamy. If it’s too thick, add a splash of milk. If it’s too thin, add a few ice cubes or more oats and blend again.
Taste and adjust. Add a pinch more cinnamon, a drizzle of sweetener, or a bit more milk to reach your perfect flavor and consistency.
Serve. Pour into a cold glass or a to-go cup.
If you like a little crunch, sprinkle a few oats or chia seeds on top.