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Peanut Butter Banana Oat Smoothie

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A thick, creamy peanut butter banana oat smoothie that tastes like a milkshake but packs a nutritious punch! This easy 5-minute breakfast smoothie combines ripe bananas, creamy peanut butter, and hearty oats for a filling drink that keeps you satisfied for hours. Perfect for busy mornings, post-workout fuel, or a healthy snack any time of day.

  • Total Time: 5 minutes
  • Yield: 1 large smoothie (or 2 small servings) 1x

Ingredients

Scale
  • 1 large ripe banana, frozen (or fresh with ice)
  • 2 tablespoons creamy peanut butter (natural or conventional)
  • ⅓ cup rolled oats (old-fashioned oats)
  • 1 cup milk of choice (dairy, almond, oat, or soy milk)
  • ½ teaspoon vanilla extract
  • 1 tablespoon honey or maple syrup (optional, for extra sweetness)
  • 3-4 ice cubes (only if using fresh banana)
  • Pinch of cinnamon (optional)
  • 1 tablespoon ground flaxseed or chia seeds (optional, for extra nutrition)

Instructions

  1. Prepare Your Ingredients: If using a fresh banana, peel and slice it. If you’ve frozen banana chunks ahead of time (highly recommended!), grab them from the freezer. Measure out your peanut butter, oats, and milk.
  2. Layer Your Blender: Add ingredients to your blender in this order for best blending results: milk first (this prevents the blade from seizing), then oats, followed by peanut butter, banana chunks, vanilla extract, and any optional add-ins like honey, cinnamon, or flaxseed. Add ice cubes last if using.
  3. Blend on Low, Then High: Start blending on low speed for about 10-15 seconds to break down the oats and larger pieces. Then increase to high speed and blend for 45-60 seconds until completely smooth and creamy. You should see no oat chunks or peanut butter streaks remaining.
  4. Check Consistency: Stop the blender and check the thickness. If it’s too thick to blend properly, add 2-3 tablespoons more milk and blend again. If it’s too thin, add a few more ice cubes or another tablespoon of oats.
  5. Taste and Adjust: Give it a quick taste test. If you want it sweeter, add honey or maple syrup and blend for another 10 seconds. If you want it colder, add more ice.
  6. Serve Immediately: Pour into a tall glass or travel tumbler. The smoothie is best enjoyed fresh when it’s at peak creaminess. You can garnish with a banana slice, sprinkle of oats, or drizzle of peanut butter on top for that Instagram-worthy presentation.

Notes

  • For Best Results: Use frozen banana chunks for the thickest, creamiest texture without watering down your smoothie with excess ice.
  • Oat Texture: If you have a less powerful blender and notice oat bits, either soak the oats in milk for 5 minutes before blending or pulse them into a flour first, then add remaining ingredients.
  • Protein Boost: Add a scoop of vanilla or chocolate protein powder for post-workout nutrition (increase milk by ¼ cup if using protein powder).
  • Make It Chocolate: Add 1-2 tablespoons cocoa powder or cacao powder for a chocolate peanut butter banana smoothie variation.
  • Thickness Control: The longer your smoothie sits, the thicker it gets as the oats continue to absorb liquid. Add a splash of milk if it becomes too thick.
  • Author: Amiyah Weaver
  • Prep Time: 5 minutes
  • Cook Time: 0 minutes
  • Category: Smoothie
  • Method: Blending
  • Cuisine: American
  • Diet: Vegetarian

Nutrition

  • Serving Size: 1 large smoothie
  • Calories: 425
  • Sugar: 28g
  • Sodium: 190mg
  • Fat: 18g
  • Saturated Fat: 3g
  • Unsaturated Fat: 13g
  • Trans Fat: 0g
  • Carbohydrates: 56g
  • Fiber: 8g
  • Protein: 14g
  • Cholesterol: 10mg