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Most of us are on a quest to increase our protein intake, which is why I’ve spent the past month creating the most delicious and nutritious protein shakes. Most store-bought protein shakes are high in protein… but I don’t actually look forward to drinking. Well, this peanut butter protein shake changes that.

  • Made with whole fruits and veggies for bonus nutrients and a wholesome boost
  • High in protein and fiber to help keep you full longer
  • No stevia or monk fruit—just naturally sweetened fruit
Ingredients for peanut butter protein shake

Ingredients You’ll Need

This peanut butter protein shake keeps things simple, wholesome, and secretly powerful. Every ingredient earns its spot by adding creaminess, flavor, or a little nutritional boost that helps you stay full and energized longer:

  • Banana: Is the base of so many great smoothies. It’s one of my favorite natural sweeteners that ads a velvety texture. You can grab ripe bananas at any grocery store or farmer’s market, or you can freeze bananas and have them ready for blending.
  • Oat milk: Makes everything smoother and richer without overpowering the flavor. It’s naturally creamy and perfect for blending into a thick shake. Look for it in the refrigerated section. You can also check out my guide on top oat milk brands or make oat milk at home.
  • Cauliflower florets: If you’ve never blended cauliflower into a smoothie, welcome to your new favorite trick. Frozen florets thicken the shake, add fiber, and sneak in veggies without turning your drink into “salad in a cup.”
  • Powdered peanut butter: It blends fast and keeps the shake light but filling. Look for it near peanut butter or protein powders at most grocery stores.
  • Vanilla bean powder: A little vanilla bean powder goes a long way. It softens the flavors, adds warmth, and makes the whole shake taste cozy (without tasting like alcohol).

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Peanut butter protein shake topped with sliced bananas

How to Make Peanut Butter Protein Shake

If you think protein shakes have to taste chalky or boring, this one will change your mind. I make this peanut butter protein shake when I want something comforting, quick, and secretly packed with good stuff. It comes together in minutes:

Oat milk, banana, and cauliflower ready to blend in a high-speed blender
  1. Blend the oat milk, banana, and cauliflower florets together on high speed until smooth.
Adding protein powder and vanilla bean powder to the blender
  1. Add the powdered peanut butter, vanilla bean powder, and your choice of protein powder. My homemade protein powder works perfect here. Blend on low speed just to incorporate everything evenly.
Peanut butter protein shake ingredients ready to be blended
  1. Check the texture. If the shake is too thick, add a splash more oat milk and pulse a few times.
Peanut butter protein shake ready to drink
  1. Pour into your favorite glass, give it a quick swirl, and enjoy immediately while it’s creamy, cold, and delicious.

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Peanut butter protein shake set out on the counter

Recipe Swaps and Add-Ins

A few simple swaps in this peanut butter protein shake can add extra flavor or make it fit exactly what your body needs:

  • Milk alternatives: Swap oat milk for another non-dairy milk that you prefer.
  • Fruits: Try frozen berries, mango, or pineapple in place of banana. If using fresh, see my guide on how to cut mango or how to cut pineapple like pro.
  • Veggie boosters: Spinach, zucchini, or pumpkin puree are sneaky ways to add nutrients without changing the flavor too much.
  • Nut butter options: Swap peanut butter powder for almond butter or cashew butter if you don’t want to buy the powder—yet I do recommend it because it removes the oil from the nuts to create a low calorie, high protein option.
  • Flavor enhancers: Add cinnamon, cacao powder, or a drop of vanilla extract to give your shake a little extra oomph.

Recipe Tips

  • Use a ripe banana: The riper the banana, the naturally sweeter your shake will be. It also helps the texture stay creamy without adding extra sugar.
  • Freeze your cauliflower: Frozen florets make the shake thicker and colder without needing ice cubes, keeping it ultra-smooth.
  • Refrigerate in an airtight container: Pour your shake into a mason jar or sealed bottle and store in the fridge for up to 24 hours. Give it a quick shake or stir before drinking.

More Protein Shake Recipes You’ll Love

If you’re loving the creamy texture of this peanut butter protein shake, here are a few more healthy protein shakes that bring flavor, nutrition, and a little indulgence to your day:

  • When I need a treat that still feels like a win, I make a chocolate weight loss shake. It’s rich, chocolatey, and satisfying without tipping the scale.
  • When I’m craving something simple and classic, a vanilla protein shake hits the spot. Smooth, lightly sweet, and versatile, it’s a great base for tossing in extra fruit, spices, or even greens.
  • For an extra indulgent twist, I love a banana chocolate protein shake. Creamy banana and chocolate pair perfectly, and it still packs protein and fiber to keep me full until my next meal.
  • And when I want something fun and a little decadent, a salted caramel protein shake is my go-to. Sweet, slightly salty, and ultra-creamy, it feels like a dessert.

If you make this peanut butter protein shake, I’d love to hear how it turned out in the comment box below. Your feedback helps me and all the readers in this community. And if you’re interested in more plant-based recipes (and exclusive content), sign up for my weekly recipe newsletter.

Peanut butter protein shake ready to enjoy
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Peanut Butter Protein Shake

This peanut butter protein shake is thick, ultra-creamy, and naturally sweet with rich peanut butter flavor in every sip. Frozen banana and cauliflower make it silky smooth, while oat milk keeps it light yet satisfying.
Prep: 3 minutes
Blend: 2 minutes
Total: 5 minutes
Serves: 1
Author: Jen Hansard

Ingredients 

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Instructions 

  • Blend oat milk, banana, and cauliflower together on high speed until smooth. If blender is having trouble, add a little more oat milk.
  • Add in powdered peanut butter, vanilla bean powder and protein powder. Blend on low to mix in.

Helpful Tools

Notes

  • Adjust sweetness to taste: If you like your shake sweeter, add some maple syrup, a few pitted dates, or a drizzle of honey (if not strictly plant-based).
  • Boost the protein: Swap in your favorite plant-based protein powder or add a scoop of powdered peanut butter for an extra protein punch.
  • Sneak in extra veggies: Cauliflower keeps the shake creamy without altering the flavor, but you can also try zucchini or pumpkin puree.
  • Blender tip: If your blender struggles with frozen ingredients, add a little more oat milk or let frozen items thaw slightly for easier blending.

Nutrition

Serving: 16 oz | Calories: 446 kcal | Carbohydrates: 38 g | Protein: 44 g | Fat: 9 g | Saturated Fat: 0.3 g | Polyunsaturated Fat: 0.1 g | Monounsaturated Fat: 0.1 g | Sodium: 306 mg | Potassium: 1487 mg | Fiber: 9 g | Sugar: 22 g | Vitamin A: 276 IU | Vitamin C: 58 mg | Calcium: 392 mg | Iron: 2 mg

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Common Questions

How can I make my shake thicker or creamier?

For a thicker shake, you can add frozen banana or a few frozen cauliflower florets, they give creaminess without extra sugar. You can also reduce the oat milk slightly or add a tablespoon of nut butter for richness.

What are some healthy add-ins for extra nutrients?

You can sneak in extras like spinach, chia seeds or flaxseed into the peanut butter protein shake recipe. Even a little unsweetened cocoa powder or cinnamon can boost flavor and nutrition.

How do I prevent my shake from tasting too sweet or too nutty?

Balance is everything. Start with smaller amounts of peanut butter or sweeteners and taste as you go. Adding more banana, a splash of oat milk, or a pinch of cinnamon can mellow out strong flavors naturally.

How long will a prepared shake last in the fridge?

It is best to drink it right away for the best flavor and texture, but you can store it in an airtight container for up to 24 hours. Give it a quick stir or shake before drinking if it separates.

Jen Hansard pouring a simple green smoothie recipe

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