Valentine’s Day Funfetti Sheet Cake
Soft and sprinkle-studded Valentine’s Day Funfetti Sheet Cake with Festive Vanilla Buttercream. This is the cutest Valentine’s Day sheet cake! It reminds me of soft romantic vibes and all things bright and cheery for this lover’s season.
How to make a Valentine’s Day Funfetti sheet cake:
My funfetti sheet cake (made with a doctored cake mix) simply can’t be beat! Bakers from all around the globe use it in the bakeries and home-bakes for the perfectly tasty results this recipe gives them every time. It starts with a box mix, and then we add a bunch of ingredients to it for the best taste and texture. Doctored Cake Mixes are celebrated and used by bakers all around, and I cannot wait for you to try this funfetti version. Let’s dive right in!
Here’s what you’ll need (the quantities are with the recipe at the bottom of this post!):
- Buttermilk
- Sour Cream
- Eggs
- Vegetable Oil
- Vanilla
- Christmas Sprinkles
- White Cake Mix
That’s it! Whisk everything in a bowl together, sift in the cake mix and stir in the sprinkles, then bake! Let it cool in the pan, then we’ll add on all those festive buttercream designs.
How to make vanilla buttercream
Making my vanilla buttercream is pretty straightforward. Here’s what you’ll need (the exact quantities are below with the printable recipe).
- Unsalted Butter
- salt
- vanilla
- heavy cream
- powdered sugar
Whip up the butter until it’s light and fluffy, then add in the salt, vanilla, and heavy cream. Add in the powdered sugar after everything is combined, then whip it all up until it’s light and fluffy in texture.
How to make the buttercream design on a sheet cake
This design uses colored vanilla buttercream and lots of fun piping tips! Here’s what I used for each color:
- 1M (large star) for the red
- 1A (large circle) for the ;light soft pink
- 6B (large french tip) for white
- 125 (pedal/ruffle) for the darker pink
Start by piping on the large rosettes and 6B swirls. Pipe in a few drop circles (pink) in clusters, then add in the ruffles and pipe in other shapes to fill everything in. Add on the silver dragees, if desired!
How to store the sheet cake?
I just place the sheet cake into the freezer until the buttercream is firm, then wrap it all up with plastic wrap and keep it in the freezer until the night before serving. I place it in the fridge that morning and it’s ready to go by the evening!
Here’s a video of the process:
I can’t wait for you to try this one! If you make my cake or a creation inspired by it, I’d love to see it. Make sure to tag me @bakingwithblondie or #bakingwithblondie so I can join in on all the fun.
Happy Baking!
xo, Mandy
Get the Recipe: Valentine’s Day Funfetti Sheet Cake
Ingredients
Funfetti Cake
- 3/4 cup buttermilk, room temperature
- 2/3 cup sour cream, room temperature
- 4 large egg whites , room temperature
- 1/3 cup vegetable oil
- 1 Tablespoon vanilla
- 1/2 cup valentine's day jimmies sprinkles
- 1 15.25oz White Box Cake Mix, sifted – I used Duncan Hines
Vanilla Buttercream
- 1 1/2 cup (or three sticks) unsalted butter, left out at room temp for 10 minutes
- 1 pinch salt
- 1 Tablespoon vanilla
- 1/2 cup heavy cream
- 7-9 cups powdered sugar
Extras
Equipment
- Piping tips: 1M (large star), 1A (large circle), 6B (large french tip), #125 (pedal/ruffle)
- 9×13 sheet cake pan
- pink and red gel coloring
Instructions
For the funfetti sheet cake
- Preheat the oven to 325 degrees, and prep a 9×13 sheet pan/dish with shortening/spray/goop/nonstick. Set aside.
- In a large bowl, whisk together all the ingredients except for the cake mix and sprinkles. Sift in the cake mix, then gently fold in the sprinkles until combined. Spread into the prepared 9×13 pan and bake for 20-14 minutes. Let cool.
For the buttercream
- In the bowl of a stand mixer, whip up the butter until it's light and fluffy, about 2 minutes. Add in the salt, vanilla, and heavy cream and whip up again to combine. Add in the powdered sugar and whip up on low speed until combined, then on high speed for 2 minutes to lighten the texture.
- Fill one piping bag with a piping tip and white buttercream. Add a drop of pink to the mixer and whip up – fill up another piping bag with the light soft pink buttercream and another piping tip. Add another drop of pink and whip up – fill up another piping bag with the light soft pink buttercream and another piping tip. Add a drop or two of red and whip up – fill up another piping bag with the light soft pink buttercream and another piping tip.
- One by one, pipe on rosettes, swirls, drop stars, and ruffles in a random pattern all over the top of the cake. Sprinkle on the silver dragees! Enjoy!