This creamy oat milk smoothie has all the cozy vibes of a Snickerdoodle cookie but in sippable form! Made with banana, peanut butter, a dash of cinnamon, and creamy oat milk, it's a dairy-free treat that’s perfect for breakfast, a midday pick-me-up, or even a light dessert.

This Snickerdoodle smoothie is a creamy, dreamy treat! I love using oat milk for everything—like oat milk pancakes, chia pudding, and now this cozy cinnamon smoothie. It’s dairy-free, naturally sweet, and so satisfying.
I love that it's made with just oat milk, peanut butter, banana, cinnamon, and ice! This smoothie is the perfect healthy breakfast, a snack, or even dessert. You can even add protein powder to make it more filling! I love sipping it as an afternoon pick-me-up—it’s light, refreshing, and always hits the spot.
Why you'll love this dairy-free recipe:
- Just 5 Ingredients: Simple, wholesome ingredients you probably already have.
- Snickerdoodle Flavor: Tastes like a peanut butter Snickerdoodle cookie in a glass.
- Naturally Sweetened: No added sugar—just banana and oat milk.
- Protein-Packed: 8 grams of natural protein to keep you satisfied.
- Dairy-Free & Vegan: Creamy without any yogurt or dairy.
- Healthy: It's healthy and gluten-free.
Ingredients
This snickerdoodle-flavored oat milk smoothie is made without yogurt and comes together with just a few simple ingredients:
- Banana: A frozen banana makes this smoothie naturally sweet and extra creamy.
- Oat Milk: Use store-bought or homemade oat milk, or substitute with almond, cashew, or even regular milk.
- Peanut Butter: Adds healthy fats and a rich flavor. Swap with almond or sun butter if needed.
- Cinnamon: The secret to that classic Snickerdoodle taste!
- Ice: Optional, but it makes the smoothie thick and refreshing.
Instrucitons
This dairy-free and healthy Snickerdoodle oat milk smoothie is so easy to make. Add all your ingredients to a high-speed blender, blend, and enjoy! Here are detailed step-by-step instructions with pictures for visual reference so any level cook can make it.
Add all ingredients (including any optional add-ins) to a high-speed blender.
Blend until smooth and creamy. Then, pour into a glass and enjoy as a breakfast, snack, dessert, or post-workout treat!
Tip: To make a thinner smoothie, add more oat milk. Add a bit more frozen banana or ice cubes to make a thicker smoothie.
Top tips
Here are a few expert tips for making super thick and creamy smoothies:
- Use Frozen Bananas: A frozen banana makes your smoothie naturally thick and creamy without relying on too much ice.
- Start with Less Oat Milk: Begin with a small amount and add more as needed for your desired consistency.
- Limit Ice: Add just a few ice cubes—too many can make your smoothie icy instead of creamy.
Equipment
- High-Speed Blender
- Spatula
- Measuring Tools
Substitutions & Variations
- Make it Gluten-Free - This oat milk smoothie is already naturally gluten-free!
- Make it Vegan - This oat milk smoothie is already naturally dairy-free and vegan!
- Protein Boost: Add a scoop of vanilla or unflavored protein powder for an extra protein punch.
- Extra Nutrients: Toss in chia seeds for thickness or collagen for added benefits.
- Nut-Free Option: Swap peanut butter for almond butter or sunflower seed butter.
- Milk Options: Sub oat milk with almond, cashew, or regular milk if preferred.
Storage
You can store this smoothie in the fridge for 1-2 days in an airtight container. For longer storage, freeze it for up to 3 months. To freeze, pour the smoothie into ice cube trays and transfer the cubes to a freezer-safe bag. When you're ready to enjoy, thaw in the fridge for a few hours or blend the frozen cubes directly for a thick, cold smoothie!
Frequently Asked Questions
Yes! You can prepare the smoothie in advance and store it in the fridge for up to 1-2 days. For longer storage, freeze it in ice cube trays for up to 3 months.
Yes, this smoothie is vegan! It’s made with oat milk, which is 100% plant-based.
Yes! Simply substitute the peanut butter with sun butter for a nut-free version.
For a thicker smoothie, try using a frozen banana, chia seeds, or reduce the amount of oat milk.
Not all oat milk brands are gluten-free. Be sure to choose "gluten-free certified" oat milk if you're following a gluten-free diet. Check that it’s made from gluten-free rolled oats.
Once opened, oat milk lasts about 7 days when stored properly in the fridge.
Try these smoothie recipes next!
- Banana Peach Protein Smoothie
- Mango Pineapple Smoothie
- Blueberry Blast Smoothie
- Banana Mango Strawberry Smoothie
- Protein Acai Bowl
Did you make this recipe?
Don't forget to leave a review and let me know how it turned out! And tag me @healthfulblondie on Instagram with #healthfulblondie—I'd love to see and share your creations!
📖 Recipe
Snickerdoodle Oat Milk Smoothie
Ingredients
- 1 large frozen banana, chopped
- ¾ cup oat milk (I love Oatly), plus more to thin if desired
- 1 tablespoon salted peanut butter
- ¼ - ½ teaspoon cinnamon, based on your preference
- 4 - 8 ice cubes
- Optional Add-Ins: 1 - 2 tablespoon chia seeds, 1 - 2 scoops of unflavored collagen, or 1 scoop of vanilla protein powder
Instructions
- Add all ingredients to a high-speed blender, with optional add-ins.
- Blend until smooth and creamy. For a thinner smoothie, add more oat milk. For a thicker smoothie, add a bit more frozen banana or ice cubes.
- Pour into a glass and enjoy!
Notes
Nutrition
I only recommend products I love and use myself. In full disclosure, I may receive a small compensation for purchasing a product I recommend. Thank you for supporting Healthful Blondie!
Sharing is caring!
Christine Allen says
SO GOOD! I loved this.
Sara says
Turned out really well! Thank you for sharing. Reese