Peanut Butter Banana Smoothie

Method

1. Blend all ingredients on high for 30–45 seconds until thick and creamy. The frozen bananas should create a milkshake-like consistency.

2. Add more milk to thin if needed. The smoothie should be thick enough to eat with a spoon if you want, or thin enough to drink through a straw.

Equipment

• Blender Recommended: Ninja Professional Plus Blender

Chef Notes

• The most important thing: Frozen bananas are the key to milkshake-thick texture without ice cream. They blend into a creamy, thick base that mimics soft-serve. Fresh bananas + ice gives you a thin, watery drink.
• Natural peanut butter (just peanuts and salt) tastes better and has no added sugar or hydrogenated oils. Stir it well before measuring.
• Add cocoa powder for a chocolate peanut butter version — it's essentially a healthy Reese's milkshake.
• The cinnamon is subtle but important. It adds warmth that rounds out the peanut butter flavor.

Common Substitutions

Ingredient	Substitution	Notes
Frozen banana	1/2 avocado or frozen mango	Banana adds creaminess — avocado does the same without the banana flavor
Protein powder	2 tbsp peanut butter or Greek yogurt	Both add protein — peanut butter adds fat, yogurt adds tang
Almond milk	Oat milk, coconut milk, or regular milk	Oat is creamiest non-dairy; coconut adds tropical flavor
Honey	Maple syrup or 2 pitted dates	Dates blend smooth and add fiber
Fresh spinach	Frozen spinach or kale	Frozen is more convenient; kale is more bitter — use less

What You're Practicing

Frozen bananas as a base teach you about using fruit as a thickener and sweetener simultaneously. The same principle is behind "nice cream" (frozen banana blended into ice cream texture) and frozen fruit sorbets. Visit Techniques for more on frozen fruit techniques.

Nut butter in smoothies teaches you about adding fat for satiety and flavor. The same approach works with almond butter, cashew butter, and tahini — each adds a different flavor profile while providing the same creamy richness and staying power.