Preheat the oven to 350°F (175°C). Grease and flour a 9-inch round cake pan.

In a mixing bowl, combine the chocolate cake mix, water, vegetable oil, and eggs. Mix until smooth.

Pour the batter into the prepared cake pan and bake for 25-30 minutes or until a toothpick comes out clean.

Allow the cake to cool completely in the pan before removing.

Once the cake is cool, slice it in half horizontally to create two layers.

Place one layer of cake on a serving plate. Spread the softened ice cream evenly over the top.

Top with the second layer of cake and wrap the entire cake in plastic wrap. Freeze for at least 2 hours.

Remove the cake from the freezer and frost the top and sides with whipped cream.

Drizzle with chocolate syrup and sprinkle with sprinkles if desired.

Slice and serve immediately.