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Monster Cookie Protein Bites: Oats, Peanut Butter and Chocolate

Say hello to monster cookie protein balls! These no-bake snacks combine classic monster cookie flavors with vanilla protein powder for an extra nutritional boost. Soft, chewy and studded with mini chocolate chips and mini M&Ms, they’re an easy, kid-friendly treat that also makes for a convenient post-workout bite.

monster cookie protein balls

Protein Balls + Monster Cookies

Combining two favorites — protein balls and monster cookies — gives you a flavorful, high-protein snack ready in minutes. These bites use all-natural peanut butter, rolled oats, mini chocolate chips, mini M&Ms, chia seeds and vanilla protein powder. They’re easy to adapt to dietary needs: swap in gluten-free oats or plant-based protein powder to make them gluten-free or vegan-friendly.

Because they require no baking and store well, these protein balls are ideal for meal prep, lunchboxes, or a quick energy boost during the day.

ingredients in bowl

Why you’ll love them

  • High-protein: About 9g of protein per ball, depending on the protein powder used.
  • No-bake: No oven required — just mix, shape and chill.
  • Meal-prep friendly: This recipe makes around 14–16 balls and freezes beautifully for long-term storage.
  • Kid-approved: The sweet mix-ins and soft texture make these a favorite with children.
cookie dough in bowl

What you need

  • Peanut butter: Use drippy, all-natural peanut butter for the best texture. Other nut butters can be substituted if desired.
  • Vanilla protein powder: Choose a vanilla powder you like — it contributes both flavor and sweetness.
  • Rolled oats: Adds whole-grain texture and structure.
  • Chia seeds: Optional, but a nice way to add fiber and small extra nutrition.
  • Honey: Natural sweetness and helps bind the mixture. It also contributes to the chewy texture.
  • Vanilla extract: Enhances the overall flavor.
  • Mini chocolate chips and mini M&Ms: The classic monster cookie mix-ins — don’t skip them if you want that signature taste and look.
  • Water (optional): A few teaspoons to adjust consistency if the dough is too dry or chalky from protein powder.
Chocolate chip cookie dough bites

Simple instructions

  1. Add: Combine peanut butter, protein powder, rolled oats, chia seeds, honey, vanilla extract, salt, mini chocolate chips and mini M&Ms in a medium bowl.
  2. Mix: Stir the ingredients together using a wooden spoon or your hands. Add water, one teaspoon at a time, until the mixture reaches a soft cookie-dough consistency. The exact amount depends on how runny your peanut butter is; add just enough to prevent a chalky texture.
  3. Roll: Use a 1-tablespoon scoop or measure and roll the dough into balls with your palms. You should get roughly 14–16 balls.
  4. Store: Chill in the refrigerator to firm up before serving. Keep refrigerated for up to 2 weeks or freeze for up to 3 months.
protein balls in container

Protein ball variations

Peanut Butter + Chocolate Chips: Simply make these with peanut butter and chocolate chips for a classic flavor.

Chocolate Sea Salt: Use chocolate protein powder and add unsweetened cocoa powder. Finish with a pinch of flaky sea salt on top.

Cake Batter: Swap in cashew butter and add rainbow sprinkles for a cake-batter style bite.

Make bars: Press the mixture into a lined pan and chill to make bars instead of balls.

Storage

Store in an airtight container in the refrigerator for up to 2 weeks. For longer storage, freeze the balls in a single layer until firm, then transfer to a sealed freezer bag or container for up to 3 months.

Freezer instructions

  1. Place the shaped balls on a parchment-lined baking sheet, leaving space so they don’t touch.
  2. Freeze for 30–60 minutes until firm; this prevents them from sticking together.
  3. Transfer the frozen balls into a gallon-size freezer bag or airtight container and seal tightly.
  4. Thaw in the refrigerator before serving or enjoy straight from the freezer.
protein balls

Ingredients (makes ~14–16 balls)

  • 1 cup drippy all-natural peanut butter
  • 1/3 cup vanilla protein powder
  • 1/2 cup rolled oats
  • 1 tablespoon chia seeds
  • 2 tablespoons honey
  • 1 teaspoon vanilla extract
  • 1/4 teaspoon salt
  • 1/4 cup mini chocolate chips
  • 1/4 cup mini M&Ms
  • Optional: 1–4 teaspoons water, to adjust consistency

Instructions

  1. Place peanut butter, protein powder, oats, chia seeds, honey, vanilla, salt, chocolate chips and M&Ms into a medium bowl.
  2. Mix with a spoon or your hands. Add water by the teaspoon if the mixture seems dry or overly chalky from protein powder.
  3. Scoop 1-tablespoon portions and roll into balls. Yield: about 14–16 balls.
  4. Store in the fridge for up to two weeks or freeze for up to three months.

Tips & notes

  • Use drippy peanut butter for the correct texture; thicker or stabilized nut butters may make the mixture too dense.
  • Adjust sweetness by swapping honey for maple syrup, though honey helps the balls bind more effectively.
  • Add-ins: raisins, coconut flakes or chopped nuts can be included to customize flavor and texture.
  • If the balls aren’t holding together, add water a teaspoon at a time until the dough reaches a sticky, moldable consistency.
  • Nutrition will vary based on the protein powder and exact ingredients you use. These balls are approximately 190 calories and 9g protein each based on the original recipe calculation.

Nutrition (approximate per ball)

Calories: 190 kcal, Carbohydrates: 15 g, Protein: 9 g, Fat: 12 g, Fiber: 2 g, Sugar: 9 g.

These monster cookie protein balls are a quick, satisfying snack you can feel good about. Make a batch, freeze some for later, and enjoy a nostalgic cookie flavor with a protein boost.