Gluten-Free Protein Vanilla Sheet Cake

This healthy gluten-free vanilla sheet cake was created by @the_bottomlesspit. 

If I’ve learned anything about love, its that it’s silly and messy (much like spilling these sprinkles EVERYWHERE the minute I open them). You just have to roll with the punches, appreciate the little things and laugh at the mistakes!

While cooking is part of my job, it’s also one of the ways that I express love. There’s nothing I love more than being in the kitchen with @sam_litrenta. Whether we’re making homemade pizza, creating a new recipe, or doing the many, MANY dishes that come along with everyday life here, there’s no place else I would rather be!

I created this gluten-free protein vanilla sheet cake using Protein Milkshake! Ingredients and directions are below!


  • 2 1/4 cups Bob’s Red Mill 1:1 Gluten-Free Baking Flour
  • 1 serving Protein Milkshake 
  • 1 1/2 cups granulated sugar
  • 2 teaspoons baking powder
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/4 cup softened butter or coconut oil
  • 1 cup milk
  • 1/4 cup canola oil
  • 3 large eggs
  • 1 1/2 teaspoons vanilla extract
  • 1 batch gluten-free buttercream frosting 


  1. Preheat oven to 350 degrees F. Grease a 9x13-inch pan with nonstick cooking spray Or if you want to remove the cake for serving, line the pan with parchment paper and grease with nonstick cooking spray.
  2. Whisk together gluten-free flour, sugar, protein powder, baking powder, baking soda, and salt in a large bowl. Add softened butter. Mix, on medium speed, until butter is incorporated. Very small pieces of butter should dot the mixture.
  3. Add the milk, oil, eggs, and vanilla extract. Mix until batter is smooth and fluffy, about one minute.
  4. Spread batter evenly into prepared pan. Bake until a cake tester inserted in the center comes out clean, about 30 minutes.
  5. Cool cake in pan. Frost cooled cake with your favorite frosting.

Using the protein powder made all the difference, as you could not taste the protein, but it is very futfilling!


Click here for Protein Milkshake.

Click here for a FREE plan to help keep you accountable. 

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