This Protein Raspberry Lemon Cake is bright, tender, and packed with fresh citrus flavor. It has the soft crumb of a classic snack cake, the tart pop of raspberries, and an easy protein boost that makes it feel a little more satisfying. It is a great choice for breakfast, a post-workout treat, or a lighter dessert.
Why You’ll Love This Recipe
This cake brings together sweet raspberries and zesty lemon in a way that tastes fresh and balanced. The protein powder blends smoothly into the batter, adding body without making the cake heavy. Greek yogurt keeps the texture moist, while the lemon juice and zest add a clean, sunny flavor in every bite.
You will also love how simple it is to make. The batter comes together in one bowl for the dry ingredients and one bowl for the wet ingredients, so it is perfect for a casual weekday bake. It looks beautiful enough for guests, but it is easy enough for everyday baking. The result is a soft, flavorful cake that feels wholesome and still tastes like a real treat.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
1 1/2 cups all-purpose flour
1/2 cup vanilla protein powder
1 1/2 teaspoons baking powder
1/4 teaspoon baking soda
1/4 teaspoon salt
2 large eggs
1/2 cup granulated sugar
1/3 cup plain Greek yogurt
1/3 cup milk
1/3 cup light olive oil or neutral oil
2 tablespoons fresh lemon juice
1 tablespoon lemon zest
1 teaspoon vanilla extract
1 cup fresh raspberries
1 tablespoon all-purpose flour, for coating raspberries
Optional lemon glaze:
3/4 cup powdered sugar
1 1/2 to 2 tablespoons fresh lemon juice
1/2 teaspoon lemon zest
Directions
Preheat your oven to 350°F (175°C). Grease and line an 8-inch round cake pan or an 8×8-inch square pan with parchment paper.
In a medium bowl, whisk together the flour, protein powder, baking powder, baking soda, and salt. Make sure the protein powder is evenly distributed so the batter bakes smoothly.
In a large bowl, whisk the eggs and sugar until well combined and slightly lighter in texture. Add the Greek yogurt, milk, oil, lemon juice, lemon zest, and vanilla extract. Whisk until the mixture is smooth.
Add the dry ingredients to the wet ingredients and stir gently until just combined. Do not overmix, or the cake may become dense.
In a small bowl, toss the raspberries with 1 tablespoon of flour. This helps keep them from sinking too much in the batter. Fold the raspberries in very gently to avoid breaking them apart.
Pour the batter into the prepared pan and smooth the top. Bake for 30 to 36 minutes, or until the top is lightly golden and a toothpick inserted in the center comes out clean or with a few moist crumbs.
Let the cake cool in the pan for 10 to 15 minutes, then transfer it to a wire rack to cool completely.
If making the glaze, whisk together the powdered sugar, lemon juice, and lemon zest until smooth. Drizzle over the cooled cake before slicing and serving.
Servings and timing
This cake makes 8 servings.
Prep time: 15 minutes
Bake time: 30 to 36 minutes
Cooling time: 30 minutes
Total time: about 1 hour 20 minutes
Variations
For a stronger lemon flavor, add an extra teaspoon of lemon zest to the batter. You can also brush the warm cake with a little lemon juice before glazing for an even brighter finish.
For a higher-protein version, replace 1/4 cup of the all-purpose flour with an extra 1/4 cup protein powder, but keep an eye on texture since too much protein powder can make the cake slightly dry.
Blueberries or chopped strawberries can be used instead of raspberries if that is what you have on hand. For a softer, richer cake, swap the milk for buttermilk. You can also bake the batter as muffins and reduce the baking time to about 18 to 22 minutes.
Storage/Reheating
Store the cake in an airtight container at room temperature for up to 2 days, or in the refrigerator for up to 5 days. If the cake is glazed, keeping it chilled will help the topping stay neat.
To freeze, wrap individual slices tightly and place them in a freezer-safe container. Freeze for up to 2 months. Thaw overnight in the refrigerator or at room temperature for about 30 minutes.
For reheating, warm a slice in the microwave for about 10 to 15 seconds. This helps soften the crumb and brings back the fresh bakery-style texture.
FAQs
Can I use frozen raspberries?
Yes, but add them straight from the freezer and toss them with flour first. This helps reduce extra moisture and keeps them from breaking apart too much.
What kind of protein powder works best?
A vanilla whey or whey-blend protein powder works very well in this cake. Plant-based powders can also work, but they may create a denser texture.
Can I make this cake without the glaze?
Yes. The cake is flavorful on its own, and the glaze is completely optional.
Can I use whole wheat flour?
Yes, but for the best texture, use half whole wheat flour and half all-purpose flour rather than replacing it all.
Why is my cake dry?
This usually happens from overbaking or using too much protein powder. Measure carefully and check the cake a few minutes early.
Can I make it less sweet?
Yes. You can reduce the sugar slightly, especially if your protein powder is already sweetened.
Can I bake this in a loaf pan?
Yes. A loaf pan works well, though the baking time may be slightly longer.
Do I need fresh lemons?
Fresh lemon juice and zest give the best flavor. Bottled juice will not taste quite as bright.
Can I use another fruit?
Yes. Blueberries, blackberries, or diced strawberries all work nicely in this recipe.
Is this cake good for breakfast?
Yes. Since it is lightly sweet and includes protein and yogurt, it makes a lovely breakfast or snack cake.
Conclusion
Protein Raspberry Lemon Cake is the kind of bake that feels fresh, light, and satisfying all at once. The lemon keeps it bright, the raspberries add juicy bursts of flavor, and the protein gives it a little extra staying power. Whether you serve it as a snack, breakfast cake, or simple dessert, it is an easy recipe that delivers a soft crumb and beautiful flavor every time.
