Homemade Protein Bars
Updated June 26, 2025

- Total Time
- 1 hour 15 minutes
- Prep Time
- 5 minutes
- Cook Time
- 10 minutes, plus at least 1 hour chilling
- Rating
- Comments
- Read comments
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Ingredients
- ½cup/167 grams pure maple syrup
- ½teaspoon fine sea salt
- ¼teaspoon freshly ground black pepper
- ¾cup/217 grams almond butter or ½ cup/145 grams peanut butter (see Tip)
- 1¼cups/122 grams quick-cooking oats
- 1¼cups/150 grams finely chopped pecans, walnuts, almonds, pistachios, cashews or peanuts or a combination (see Tip)
- ½cup/74 grams pepitas (shelled pumpkin seeds)
Preparation
- Step 1
Line the bottom and sides of a 9-inch square baking pan with parchment paper.
- Step 2
Bring the syrup, salt and pepper to a boil over medium-high in a large saucepan, stirring occasionally. Boil until thickened to the consistency of honey, about 2 minutes. Turn the heat down to low, add the almond butter, and stir until smooth and bubbles just start to pop, about 1 minute longer. Turn off the heat.
- Step 3
Add the oats, nuts and seeds, and stir until everything is very evenly coated. Smash and scrape the mixture as needed to get everything coated; the mixture will be quite stiff.
- Step 4
Scrape the mixture into the parchment-lined pan and press firmly into an even layer. Refrigerate until stiff, at least 1 hour and up to overnight.
- Step 5
Use the parchment to slide the slab out of the pan and onto a cutting board. Cut into 12 even bars. Wrap individually, if you’d like. The bars will keep in an airtight container at room temperature or in the refrigerator for up to 2 weeks.
- Peanut butter binds ingredients best, but almond butter works as well. You just need more of it to glue the bars together. Sunflower seed butter can be used, but the bars may crumble. Tahini isn’t quite sticky enough to do the job. All-natural varieties, in which the only ingredients are the nuts or seeds and salt (and, sometimes, oil), deliver the nuttiest flavor.
- You can use any variety or combination of your favorite nuts. Just make sure they’re raw, or natural, without added oils or salt. Also make sure that they’re chopped small enough so that the bars will hold. Pre-chopped walnuts and pecans and sliced almonds make this recipe come together even more quickly.
Private Notes
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Comments
Delicious, but very misleading to call them protein bars. Lots of calories (~300) to get to less than 10g of protein.
I tested these with regular rolled oats and they're very tasty, but because they're larger and thicker than quick-cooking oats, the bars don't hold together easily. If you're ok with the bars crumbling a bit, you definitely can use rolled oats!
Could you use honey in the first place (or better yet, Lyle's syrup) rather than boiling maple syrup until it has the consistency of honey?
Half of the pans bars crumbled during cutting despite following the recipe and providing a day of chill in the fridge. It tastes fine, not fantastic. The clumpy granola recipe I use tastes better and has a healthier nutritional profile. I will eat the crumbs using a handful for a serving size but won’t be making this again.
Really good! I made one change based on Kim Boyce's granola bar recipe in Good to the Grain. I just toast the oats for a bit in a dry pan and then proceed with the recipe as is! I'll definitely make again!
Tried this (using maple syrup and peanut butter, and a combination of almonds, pistachios, and cashews) and it was the consistency of sand once I stirred everything together. For the life of me, I can't figure out what went wrong. Any ideas? This wasn't just crumbly at the edges, it completely couldn't hold together. Amounts of everything have been triple-checked...no errors there. Would love to try again, but not if it results in this mess. TIA for any advice!
