Preheat the oven to 350°F. Lightly butter two 9-inch round cake pans and set aside.
In a stand mixer with the paddle attachment, beat the softened butter and sugar on medium speed, scraping down the sides as needed to combine, about 2-3 minutes. The butter mixture should be light and fluffy.
In a separate bowl, combine your all-purpose flour, baking powder, baking soda and salt. Lightly mix with a whisk, set aside.
Add your eggs and vanilla to the cream and butter mixture, beating for an additional 30 seconds until mostly combined.
Slowly add your dry ingredients 1 cup at a time to the mixing bowl, scraping down the side of the bowl as needed. Mix on low speed for about 30 seconds until roughly combined. The dough texture will be very thick. Take a rubber spatula and finish combining any remaining flour or dough.
Add the chocolate chip morsels and combine with your hands to ensure the chocolate is evenly distributed throughout the dough.
Split the dough evenly in half and evenly distribute in the bottom of both 9 inch cake pans. Use your hands to spread the dough evenly across the pans and around the edges. The dough should be even in height and flat across.
Bake the cookie dough for about 13-15 minutes until fully cooked. At around 11-13 minutes, take a toothpick or butter knife and insert into the center of the cookie. The toothpick or knife should come out clean once the cookie is baked.
Cool the cookie cakes for about 5 minutes in the cake pans, then transfer to a wire rack to finish cooling. Although not required, a wire rack will ensure your cookies are not moist on the bottom and cool properly.
While your cookie cakes are cooling, take your ice cream out of the freezer to start dethawing at room temperature. It should take about 30 minutes for your ice cream to soften enough for you to spread it around on the cookie cakes.
Let the cookies cool completely for about 30 minutes or longer before moving on to assembling your cake.
When you are ready to assemble your ice cream cake, take your springform pan and place one of the cookie dough cakes in the bottom. Add all of the softened ice cream on top of the cookie cake and smooth until flat and the ice cream reaches all edges of the pan.
Add the second layer of the cookie cake to assemble your cake in the spring form pan. Place the ice cream cake in the freezer for 1-2 hours to firm up before adding your sprinkles.
Once your ice cream has slightly set, remove from the springform pan. Smooth down the edges of the ice cream so the texture is consistent, filling in any gaps as needed. Add your sprinkles to the sides of the ice cream, ensuring all of the ice is evenly coated with sprinkles.
If the ice cream cake has slightly melted at this point, you can place it back in the spring form pan or cylinder disc on a baking sheet to let it fully set. If the ice cream cake is not melting and still intact, place on a baking sheet to finish freezing as is. Freeze for an additional 2-4 hours or overnight to completely set.
If you are freezing the cake overnight and not serving the day of, move the cake to a plastic cake carrier or wrap in plastic wrap and freeze until you are ready to serve. If the cake is still in the spring form plan, remove the spring form pan and smooth down any rough sides or add additional sprinkles if needed.