This Birthday Cake Fudge delivers a creamy, indulgent texture with a fun, cake-inspired flavor that makes any celebration extra special.
Often we only think of making Candy Recipes like Chocolate Fudge or Gingerbread Fudge around Christmas time, but why not make fudge year round? This creamy white chocolate fudge is perfect for Birthdays and other celebrations any time.
Sabrina’s Birthday Cake Fudge Recipe
This easy, festive fudge delivers rich, creamy flavor with colorful sprinkles that make each piece look like a mini birthday cake. It’s a fun, kid friendly treat that doubles as a charming party favor and a crowd pleasing dessert for any celebration.
Recipe Card


Ingredients
- 3/4 cup white cake mix powder
- 14 ounces sweetened condensed milk
- 2 tablespoons unsalted butter
- 2 cups white chocolate chips
- 2 tsp vanilla extract
- 1/3 cup rainbow sprinkles , divided
Instructions
- Line an 8×8 pan with foil and spray with vegetable oil spray.
- Add white chocolate chips, white cake mix and sweetened condensed milk to a large saucepan on low heat.
- Stir until chocolate is melted.
- Once chocolate mixture is smooth, turn off heat and add in vanilla extract.
- Add half the fudge to baking pan and spread evenly.
- Sprinkle over half the sprinkles.
- Add the rest of the fudge evenly and add the remaining sprinkles over the top.
- Refrigerate for 4 hours before slicing.
Nutrition
Table of contents
About this Recipe
Just like Cake Balls, this is an easy homemade candy that turns out colorful and fun with festive sprinkles and white chocolate. If you’re planning a birthday party this is a great treat to have out, or package up as party favors. The fun rainbow sprinkles make it a huge hit with kids, and the fudge is so rich and creamy adults will love it too!
Chef’s Note
Making fudge is easier than you think. The biggest thing to watch is the temperature—if the chocolate mixture gets too hot or doesn’t heat enough, the texture won’t turn out right. When you add the chocolate chips, condensed milk, and cake mix to the saucepan, keep the heat low and stir until everything melts into a smooth, glossy mixture. If you want to be extra sure it’s perfect, use a candy thermometer and cook it to 235°F. Once it hits that sweet spot, turn off the heat and stir in the vanilla.
Baking Tips & Tricks
- Make sure you prepare your pan with aluminum foil and non-stick spray so the fudge doesn’t stick to the pan.
- Add half the fudge to your prepared pan and use a spatula to smooth it out. Add half the sprinkles over the top. Repeat with the remaining fudge and sprinkles.
- Instead of pouring the fudge mixture into a regular pan try using candy molds to make the fudge into whatever shapes you want. Once the fudge sets, you can place it on your cake and enjoy.
How to Store
- Serve: Wait to slice the fudge until it sets in the fridge for 4 hours. After it’s set in the fridge, you can keep fudge at room temperature for up to a week. Keep it in an airtight container in a cool area.
- Store: Fudge will stay good in the fridge for up to 2 weeks. Keep it in a Ziplock bag or other airtight container. Separate the squares of fudge with parchment paper so they don’t get stuck together.
- Freeze: Fudge can keep well in the freezer for up to 6 months. To prep it for the freezer wrap each piece of fudge in wax paper and plastic wrap, then seal them in a freezer bag. Let them defrost in the fridge before eating.
Ideas to Serve Birthday Cake Fudge
This colorful fudge is perfect for dressing up any celebration. Cut small pieces to sprinkle over homemade vanilla ice cream for an easy birthday dessert or use the colorful squares as fun decorations on top of an actual birthday cake. It adds sweetness, texture, and a festive pop of color wherever you use it.
Variations
- Chocolate Cake Fudge: Instead of making white chocolate fudge, you can exchange the white chocolate chips for semisweet, milk chocolate or dark chocolate, and use your favorite chocolate cake mix to make Chocolate Cake Mix Fudge.
- Cake mix: You could also try other cake mixes besides white or chocolate. Funfetti, red velvet, strawberry, or yellow cake mix could all be fun to try out in this fudge recipe.
- Food Coloring: To make your Birthday Cake Fudge even more festive try using food coloring to make your white chocolate fudge into any color you’d like. You can even divide the fudge in half to make the top and bottom layer 2 different colors.
- Add-ins: For more texture try putting in some nuts like chopped almonds, pecans, or walnuts. You could also add in mini-chocolate chips or marshmallows at the same time you add the vanilla extract.
Related Recipes
More Fudge Recipes

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Came out nicely… but what is the butter for? It’s in the ingredients list but not the recipe steps. I didn’t use it and didn’t seem to have any problems – just confused.