Strawberry Bundt Cake with Filling – A Simple Delicious Birthday Cake Recipe

There’s something magical about slicing into a cake and discovering a surprise inside—and this Strawberry Bundt Cake totally delivers. One look at that fluffy pink crumb paired with a creamy marshmallow center, and suddenly every other dessert on the table feels a little… jealous. This is not just any Birthday Cake With Filling. It’s the kind of cake people talk about after the party is over.

Made with simple pantry staples, this recipe proves that Simple Delicious Cake Recipes don’t have to be boring or basic. The strawberry cake comes together effortlessly, and yes—this is one of those genius Cakes With Pudding Mix In It that tastes extra moist and rich (IMO, pudding mix is the real MVP here). The marshmallow cream filling adds that bakery-style wow factor without adding stress.

Ever scroll Pinterest wondering about Things To Make With Strawberry Box Cake besides cupcakes? This is the answer. The Bundt shape makes it elegant, while the method stays refreshingly easy. Bold truth: this cake looks fancy but behaves like a low-maintenance dessert. Win-win.

It’s also a sneaky alternative to Easy Dessert Casserole Recipes when you want something more polished but just as crowd-pleasing. Planning ahead for love-filled holidays? This cake fits perfectly into Easy Valentine Dessert Ideas and Easy Valentines Day Recipes—pink, sweet, and impossible to resist.

I bake with mixes all the time and have mastered the art of remixing them into something that tastes completely homemade. That’s why fans of Homemade Strawberry Cake Mix Recipes and Homemade Bundt Cake Recipes will love this one. Key tip: no one will guess it started with a box. FYI, you don’t need professional skills—just a good pan and a little confidence.

Ready to bake something that looks bakery-made but feels totally doable? Let’s do it. 🍓🎂

Strawberry Bundt Cake

This Strawberry Bundt Cake with Filling is the ultimate crowd-pleasing dessert that looks bakery-perfect but is surprisingly easy to make. Made with simple pantry ingredients, this soft strawberry cake hides a creamy marshmallow filling that adds a sweet surprise in every slice. Using a boxed cake mix enhanced with pudding, the texture turns extra moist and rich while still tasting completely homemade. Perfect for birthdays, Valentine’s Day, or any special gathering, this Bundt cake delivers big flavor with minimal effort. It’s sweet, fluffy, and guaranteed to impress family and friends—no fancy baking skills required.

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Prep Time 20 minutes mins

Cook Time 40 minutes mins

Course: Dessert, Snack

Cuisine: American

Ingredients Method Notes

Ingredients

  

• Ingredients
• Strawberry Bundt Cake
• 1 box strawberry-flavored cake mix
• 4 large eggs
• 1⅓ cups water
• ⅔ cup vegetable oil
• 1 3-oz package strawberry gelatin powder
• Marshmallow Cream Filling
• 1 stick unsalted butter softened
• 7.5 oz marshmallow Creme
• 3 cups powdered sugar
• 1 teaspoon vanilla extract
• 4 tablespoons heavy whipping cream

Method

 

1. Heat your oven to 350°F (175°C) and generously coat a Bundt pan with nonstick spray, making sure to cover all the grooves.

2. In a large mixing bowl, combine the cake mix, eggs, water, oil, and strawberry gelatin. Beat until smooth and evenly blended.

3. Transfer the batter into the prepared Bundt pan, spreading it evenly.

4. Bake for 35–40 minutes, or until a toothpick inserted into the center comes out clean.

5. Allow the cake to rest in the pan for about 10 minutes, then carefully invert it onto a wire rack. Let it cool completely before moving on.

6. Once fully cooled, it’s time to make the filling. Do not rush this step—cool cake is key.

7. Beat the softened butter until pale and fluffy. Add the marshmallow Creme, powdered sugar, and vanilla, mixing until smooth.

8. Gradually beat in the heavy cream, one tablespoon at a time, until the filling reaches a thick but pipeable consistency. Stop once it’s smooth and fluffy.

9. Turn the cooled cake upside down so the bottom faces up.

10. Use a teaspoon, melon baller, or small scoop to carve 8–10 small holes in the base of the cake.

11. Gently deepen each cavity with the handle of a wooden spoon to create room for the filling.

12. Spoon the marshmallow cream into a piping bag and neatly fill each opening.

13. Place your serving plate over the cake and carefully flip it right-side up. Finish with a light dusting of powdered sugar, slice, and enjoy!

Notes

Storage Tips

Refrigerator:
Because the filling is dairy-based, store the cake covered in the refrigerator. A cake carrier with a lid works perfectly and makes transport easy.

Freezer:
This cake doesn’t freeze well due to the marshmallow cream filling, so freezing is not recommended.

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Substitutions & Variations

• Cake Base: Swap strawberry mix for vanilla, lemon, or chocolate to change up the flavor.
• Filling Options: Use stabilized whipped cream, pastry cream, or cream cheese filling for a richer twist.
• Extra Strawberry Flavor: Add strawberry gelatin to vanilla or white cake mix if strawberry mix isn’t available.
• Berry Boost: Fold in chopped strawberries, raspberries, or blueberries for extra texture and freshness.

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FAQs

How can I make boxed cake taste bakery-style?
 Upgrade a box cake by replacing water with milk, adding an extra egg, and using melted butter instead of oil. Baking at 325°F helps create an even rise, and brushing with simple syrup adds moisture.

Do professional bakers really use cake mix?
 Yes—many bakers use boxed mixes as a base and customize them with premium ingredients like butter, sour cream, and flavor extracts. It’s all about technique and balance.

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Final Thoughts

This Strawberry Bundt Cake proves you don’t need complicated steps or fancy tools to create a dessert that looks bakery-made. The soft strawberry crumb paired with a hidden marshmallow cream center delivers a fun surprise in every slice. Whether it’s for birthdays, holidays, or just because—this cake never fails to impress. Simple, beautiful, and downright delicious. 🍓🎂