In a high powered blender, add in all ingredients and blend on high for 30 seconds - 1 minute or until smooth and creamy.
1 large frozen banana, 2-3 Tbsp. creamy peanut butter*, 1 cup milk of choice, 1/4 cup Greek yogurt, plain, 1 tsp. vanilla extract, ice (optional), 1/2 tsp. cinnamon
Garnish with more cinnamon, banana slices or a drizzle of peanut butter if desired. Enjoy immediately!
If necessary, add in more milk or frozen bananas to reach desired smoothie consistency. More milk will thin it out, more frozen bananas will make it thicker and colder.
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Notes
You can use your favorite nut butter or powdered peanut butter if you prefer.
If you'd like your smoothie a little sweeter, add in 1 Tbsp. honey
Make it a chocolate peanut butter banana smoothie by adding in 1 Tbsp. cocoa powder
Add nutritional boosters such as chia seeds, ground flaxseeds or hemp seeds.
Use non dairy or plant based milk and yogurt if needed.