Homemade Protein Bar Recipe – Add Your Own Flavors!

Here is my base protein bar recipe.  Once you have this part down all you need to do is add your own extracts to create your own flavor of bars!  I usually do 2-3tsp extract per batch.   One very important tip. The homemade protein bars have no preservatives in them. So, if you make them you MUST keep them in the fridge or the freezer or they will spoil after one day left on the counter. I learned this the hard way :)  I usually let them cool then put 4 squares in a ziploc sandwich bag and stick them in the fridge or freezer.  They will be good 4-5 days in the fridge otherwise stick them in the freezer :)  


  • 1.5 cups oat flour (I grind my own oat flour in my food processor or blender from old fashioned oats, but if you are in a rush you can just use old fashioned oats instead of oat flour, the bars will just be a little chewier)
  • 3 scoops vanilla whey protein (I like MRM brand Rich Vanilla flavor)
  • 1 Tbsp baking powder
  • 1/2 tsp salt
  • 1/3 cup Stevia in the Raw or 1/2 cup brown sugar xylitol/regular xylitol (I like Ideal brand)
  • 3 egg whites
  • 1 cup unsweetened vanilla almond milk (I like Almond Breeze – the 40 calorie per serving one)
  • 1/3 cup unsweetened applesauce or 1 3.5oz container of fruit flavored baby food (I used blueberry apple Gerber brand) – whatever flavor extract you use will determine what you want to use here
  • ¼ cup Fage brand 0% Greek yogurt
  • 2-3 tsp of extract of your choice (you could do 1/2 and 1/2, i.e. 1 tsp almond extract, 1.5 tsp orange extract)
  • Any other flavors/nuts of your choice (nuts, peanut butter, unsweetened cocoa powder, instant coffee, etc).  Raspberry Walnut is my favorite! Raspberry extract with

Preheat oven to 350. Spray an 8 X 8 inch Pyrex dish with non-stick spray.


In a large bowl combine: (whisk together)

oat flour + vanilla whey protein

baking powder

tsp salt

Stevia in the Raw or brown sugar xylitol/regular xylitol (I like Ideal brand)


In a medium bowl combine: (whisk together & add to lrg bowl)

egg whites

unsweetened almond milk (Almond Breeze)

fruit flavored baby food or unsweetened applesauce if you don’t have baby food handy

Plain Greek yogurt

-Any other flavors or nuts you are adding to recipe.


Mix dry and wet ingredients well. Pour into prepared pan. Bake for 25 to 30 min or until knife comes out clean when placed in center. (Mine was closer to the 30 minutes but this will vary depending on your oven). Let cool for 10 min. Bars will be dense.


Makes 16 squares

Nutritional Information:
1 square
Calories: 55
Fat: 1g
Carbs: 6.4g
Protein: 5.5g
Sugar: 1g
(this will vary if you put nuts, peanut butter, or unsweetened cocoa powder in your bars).

4 squares = 1 serving if eating as a small meal.
2 squares = serving size if using as the starchy carb in your meal.


  1. I used Jamie’s Lemon Protein Bar recipe minus the lemon flavoring. swapped banana whey for the vanilla, and added 1/3 cup chopped walnuts and 1/4 cub carob chips=……………… Funky Monkey Bars.
    Next time I will use this recipe for my cravings and creations

    • Yum!!! Oh my gosh that seriously sounds delicious!!! Thanks for the idea – I might just steal it from you when my pregnancy cravings hit hard :)

  2. This is an excellent recipe. I was looking for ways to replace Medifast meal bars with a homemade version having roughly equivalent nutritional values and calories (excluding the vitamins added to Medifast bars). I used whole oats and substituted Silk Light Vanilla soy milk for the almond milk, sugar-free orange marmalade for the apple sauce and Splenda for the Stevia. The result was a quite good 110 calorie bar with a muffin-like consistency that cost about a third of the Medifast bars, with the whey protein being by far the most expensive ingredient!

  3. I wanted to make sure I understand the recipe….. the 1.5 cups of oat flour…. is that measurement before or after you’ve ground the oats? I’m very excited to try this recipe but wasn’t sure, and wanted to check first. Thanks for all the recipe shares.

  4. Natalie,
    Just curious – do you still use the Stevia in the raw while breastfeeding? I have some on hand but am nervous to use it!

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