Make your own viral-style number birthday cake at home! I’ll walk you through all the tips and tricks to create a stunning, bakery-worthy cake decorated with fruit, flowers, candies, or cookies—perfect for any celebration.
For a double digit cake, you can use two 9x13 pans or one 12x18 pan. Coat the pans with non-stick spray, line bottom with parchment paper then add the cake batter.
Bake at 350ºF until the cakes are done. A toothpick inserted into the center of the cake will come out clean. For a 9x13 cake, this should take about 30 minutes and for a 12x18 cake it should take 45-50 minutes.
Let the cakes cool in the pan for 15 minutes, then invert onto a cooling rack to cool completely.
To make the frosting, whip the softened butter in a stand mixer until light and fluffy, about 7-8 minutes.
Add half of the powdered sugar and mix until mostly combined. Add remaining powdered sugar, vanilla and heavy cream and mix for another 5-7 minutes until smooth and silky.
Use a long knife to cut the dome top off your cake and level it. Place your number forms on top of the cake and use a sharp knife to cut your numbers out.
Gently and carefully cut each number cake into two layers. I used the same long bread knife that I cut and leveled the cake. Carefully transfer the top layers to another cooling rack.
Transfer frosting to a piping bag with a large round piping tip, like a 1A tip and squeeze rounds of frosting along the cake. You don’t have to cover ever speck of cake.
Carefully transfer the top cake layer over each number. Don’t worry if your cake cracks or breaks. My zero totally broke. The cracks get hidden with frosting.
Add a thin layer of white frosting over the top of the cake, especially if you have cracks that need mending. You can use the same piping tip or any star tip to add dollops of frosting all along the top.
Cut strawberries in half, if you want, and arrange all throughout the top of the cake along with any other berries and fruit you are using. Be sure to dry the fruit off with a paper towel first. Decorate with any cookies, candies and/or flowers you like.
Keep the cake chilled in the refrigerator until about 30-minutes before serving.
Notes
You can decorate your cake with anything you want. Some options include:
Macarons
Oreos
Wafer rolls
Meringues
Chocolate covered strawberries
Lollipops
Fondant
Mini cupcakes
Donuts
Gummies
Malt balls
Chocolates
Sprinkles
Edible flowers
TO STORE: If your cake is frosted, I suggest storing any leftovers in an airtight container and refrigerate for up to 5 days. If unfrosted, you can keep it covered on the counter for up to 3 days or refrigerate for longer.TO FREEZE: You can also freeze leftovers. Wrap in foil, parchment paper or plastic wrap and freeze for up to 4 months.