In a large mixing bowl, with an electric mixer, beat the heavy cream until stiff peaks form.
In a separate large bowl, add the sweetened condensed milk, dry cake mix, and vanilla extract. Mix until well combined.
Gently fold the whipped cream into the condensed milk mixture. Be careful not to overmix; you want to keep the mixture light and fluffy.
Add cupcake crumbles and sprinkles to the mixture. Fold them in gently, ensuring they are evenly distributed throughout the ice cream base.
Transfer the mixture to a loaf pan or a container suitable for freezing. Smooth the top with a spatula.
Sprinkle additional sprinkles on top for a festive touch.
Cover the container with plastic wrap or a lid and place it in the freezer for at least 6 hours or overnight until the ice cream is completely frozen.
Once the ice cream is frozen, it's ready to serve! Scoop it into bowls or cones, and enjoy!
Notes
Make sure the whipping cream is cold before whipping to achieve stiff peaks.You can use any flavor of dry cake mix that complements the birthday cake theme.If you don't have vanilla cupcakes, you can use plain vanilla cake or yellow cake and crumble it instead.It's best to remove the ice cream from the freezer and let it soften for a few minutes before scooping to make it easier to serve.You can add a few drops of food coloring to the ice cream mixture to create a vibrant, colorful birthday cake ice cream.Drizzle some hot fudge or caramel sauce over the scooped ice cream for extra indulgence.Top the ice cream with whipped cream and additional sprinkles for an extra festive touch.Store the leftover ice cream in an airtight container in the freezer for up to 2 weeks.