If you’ve ever craved something chocolatey, peanut buttery, and satisfying—but didn’t want to derail your healthy eating goals—these High Protein Chocolate Peanut Butter Bars are exactly what you need. They’re sweet, chewy, rich in flavor, and packed with protein to keep you full and energized. And the best part? No baking required.
I started making these bars when I needed an afternoon snack that felt like a treat but wouldn’t leave me feeling sluggish or hungry an hour later. With a few basic pantry ingredients—nut butter, oats, protein powder, and a touch of chocolate—you get a high-protein snack that feels like dessert but works for any time of day. My kids love them too (especially when I add a few mini chocolate chips on top), and I love that I can make a batch in 10 minutes and have snacks for the whole week.
They’re perfect as a pre- or post-workout snack, an after-school treat, or even a quick on-the-go breakfast with your morning coffee. You can make them in one bowl, press into a pan, chill, and slice. It’s that easy—and they freeze beautifully too.
What You’ll Need
For the Bars:
- 1 cup natural peanut butter (or almond butter)
- ½ cup honey or maple syrup
- 1 cup rolled oats
- ½ cup vanilla or chocolate protein powder
- 1 tablespoon chia seeds (optional)
- ½ teaspoon vanilla extract
- Pinch of salt
For the Topping:
- ¾ cup dark chocolate chips
- 1 tablespoon coconut oil (optional, for smoother texture)
- Flaky sea salt (optional, for sprinkling)
Pro Tips
- Use runny peanut butter for easier mixing—thicker kinds may need a few seconds in the microwave.
- Press the mixture firmly into the pan using a spatula or the bottom of a measuring cup for neat, compact bars.
- Chill fully before slicing to help the bars hold their shape, especially if you’re adding a chocolate topping.
- Add a sprinkle of flaky salt to the melted chocolate layer for that perfect sweet-salty balance.
- Use parchment paper to line your pan—it makes lifting and slicing the bars a breeze.
Tools You’ll Need
- Mixing bowl
- Rubber spatula
- Measuring cups and spoons
- 8×8-inch baking dish
- Parchment paper
- Microwave-safe bowl (for melting chocolate)
Substitutions & Variations
Nut-Free: Use sunflower seed butter or tahini in place of peanut butter.
Low Sugar: Use a sugar-free syrup like monk fruit maple syrup and low-carb chocolate chips.
Different Protein: Any flavored protein powder works—try chocolate, peanut butter, or even unflavored.
Add Crunch: Stir in crushed peanuts, chopped almonds, or puffed rice for added texture.
No Protein Powder: Use an equal amount of oat flour or ground flaxseed for a lower protein, whole-food version.
Make-Ahead Tips
- Prepare bars and store in the fridge for up to 1 week.
- Freeze for up to 3 months. Wrap individually or store in a single layer with parchment between.
- Thaw in the fridge overnight or on the counter for 10–15 minutes before eating.
How to Make High Protein Chocolate Peanut Butter Bars
Step 1: Mix the Base
In a large bowl, mix together the peanut butter and honey until smooth. Add oats, protein powder, chia seeds (if using), vanilla extract, and a pinch of salt. Stir until fully combined.
Step 2: Press Into Pan
Line an 8×8-inch pan with parchment paper. Press the mixture evenly and firmly into the bottom of the pan.
Step 3: Add the Chocolate Topping
Melt chocolate chips with coconut oil in a microwave-safe bowl in 30-second increments, stirring between each. Pour over the base and spread evenly. Sprinkle with sea salt if desired.
Step 4: Chill and Slice
Refrigerate for at least 1–2 hours until firm. Once set, lift the bars out using the parchment paper and slice into squares or bars.
Leftovers & Storage
- Store bars in an airtight container in the fridge for up to 7 days.
- Freeze for up to 3 months; thaw slightly before eating.
- Keep bars chilled for best texture, especially in warm weather.
Final Thoughts
These High Protein Chocolate Peanut Butter Bars are the ultimate make-ahead snack for busy days. They’re quick to prep, endlessly customizable, and packed with wholesome ingredients that taste like a treat. Whether you need an after-school snack for the kids, something post-gym, or just a better alternative to store-bought bars, these deliver on all fronts. Try a batch this week, and let me know in the comments how you made them your own—there are so many fun ways to switch them up.