What’s the Typical Protein Content in a Protein Bar?
Protein bars contain anywhere from 5 to 20 grams of protein per bar. A high-quality protein bar should provide at least 10 grams of protein per bar.

Storage
For storage:
- To Store: Place the sliced bars in an airtight container and refrigerate for up to 5 days. Avoid prolonged room temperature storage.
- To Freeze: Transfer the bars to an airtight container and freeze for up to 3 months. Thaw the bars before consumption.
Peanut Butter Protein Bars
These homemade chocolate peanut butter protein bars are quick and easy to prepare and can be stored in the fridge or freezer for lasting enjoyment of high-protein snacks.
Ingredients
- 1 ½ cups creamy natural peanut butter
- 1 ¼ cup vanilla protein powder, or unflavored
- ¼ cup oat flour*
- ¼ cup honey
- ½ teaspoon sea salt
- ¼ cup dark chocolate chips
- 1 teaspoon coconut oil
Instructions
- Line an 8×8-inch baking pan with parchment paper.
- In a large bowl, add the peanut butter, protein powder, oat flour (see note below), honey, and sea salt, and mix, using a spatula or your hands, until well combined and a sticky batter forms. The mixture may still be a little crumbly, but be sticky enough that it holds together when pressed together with your hand. If your mixture is too dry, add a couple more spoonfuls of peanut butter and/or honey until it begins to hold.
- Transfer the peanut butter mixture to the baking pan, spreading it out evenly, and pressing it into the bottom of the dish with your hands and/or a silicone spatula. Continue pressing it until the top of the peanut butter mixture is firm, smooth, and a little glossy.
- Once pressed into the dish, transfer the baking pan to the fridge for 30 minutes to set and firm up.
- Once complete, remove the baking pan from the fridge and, using the parchment paper, remove the mixture from the baking pan and transfer it to a cutting board. Using a large, sharp knife, slice the mixture into 10 evenly shaped bars.
- In a small microwave-safe bowl, add the chocolate chips and coconut oil and then warm in the microwave in 30-second increments, stirring in between, until melted and smooth, and then drizzle the top of each bar with melted chocolate.
- Transfer the bars back to the fridge, directly on the cutting board, for 10 minutes or until the chocolate has solidified.
- The bars can be enjoyed immediately or stored in an airtight container in the fridge for up to 5 days.
Notes
Oat Flour: If you don’t have oat flour, you can make your own by grinding 1/4 cup of rolled oats in a food processor until a fine flour-like texture forms.

