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Easy Vanilla Protein Cake

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Baking something simple and bringing it along for the day just hits differently.
I made this on a whim before a trip, and tossed it into my bag without overthinking it. Later, sitting on the jumpseat between flights, I pulled it out to share with one of my fellow crew members. She took a bite, paused, and said, “wait… this cake is so good.”

Moist easy vanilla protein cake sliced and served with fresh berries on a plate

This Easy Vanilla Protein Cake is one of those back-pocket recipes I love. One bowl, basic ingredients, and a little protein boost that makes it feel slightly more responsible. It’s not a “protein bar disguised as cake.” It’s actual cake… just upgraded.

Why You’ll Love This Easy Vanilla Protein Cake

Simple pantry staples – You probably already have everything you need.
One-bowl wonder – Easy prep, minimal cleanup.
Soft & moist – Feels indulgent without being heavy.

Tips for the Best Easy Vanilla Protein Cake

Grease or line your pan – Parchment paper makes clean removal effortless.
Flavor boosters – A dash of vanilla extract, or a sprinkle of cinnamon, elevates the sweetness.
Cool before slicing – Helps it hold shape and stay moist.

FAQs

How do I store vanilla protein cake?

Keep it in an airtight container at room temperature for 2–3 days, or refrigerate for up to a week. You can also freeze slices for up to 3 months — perfect for a quick grab-and-go snack.

What size pan did you use?

I used a standard long loaf pan.

Can I use a different protein powder?

Yes! Any vanilla protein powder works.

More Healthy Baking Recipes You’ll Love

Lemon Blueberry Overnight Chia Pudding

Almond Flour Chocolate Cake Squares

Flourless Tahini Cookies

Coconut Date Balls (Samoa Cookie Inspired)

Easy Vanilla Protein Cake

One-bowl recipe perfect for breakfast, snacks, or a guilt-free treat.
Prep Time10 minutes
Cook Time45 minutes
Servings: 12 slices
Author: Rachel

Equipment

Ingredients

  • 3 large eggs
  • 1 small plain yogurt container 150g / 5.3 oz
  • 3/4 cup neutral oil avocado, canola, or vegetable
  • 1 Teaspoon vanilla extract
  • 1 cup sugar
  • A pinch of salt
  • 3 Tablespoons (not scoops!) protein powder (Vanilla) I used Thorne
  • 1 cup all-purpose flour
  • 1 Teaspoon baking powder
  • 2-3 Tablespoons real maple syrup for topping

Instructions

  • Preheat the oven to 350°F (180°C).
  • Grease or line a loaf pan with parchment paper.
  • In a large bowl, whisk together the eggs, yogurt, oil, vanilla extract, sugar, and salt until smooth and well combined.
  • Add the vanilla protein powder, flour, and baking powder. Mix until just combined and no lumps remain.
  • Pour the batter into the prepared loaf pan and smooth the top.
  • Bake for about 45-50 minutes, or until a toothpick inserted into the center comes out clean.
  • While the cake is still warm, pour 2–3 tablespoons of maple syrup evenly over the top and let it soak in.
  • Let the cake cool completely before slicing.
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Notes

How do I store vanilla protein cake?
Keep it in an airtight container at room temperature for 2–3 days, or refrigerate for up to a week. You can also freeze slices for up to 3 months — perfect for a quick grab-and-go snack.

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