Ice cream cake is a delicious treat during the hot summer months, though many people enjoy ice cream cakes throughout the year. The perks of an ice cream cake is that you get both cake and ice cream in the same dish. Use any flavour of ice cream in your ice cream cake. Once the ice cream cake is finished, use regular frosting to decorate it any way you choose. Use the colours and flavours to fit themes as well. For example, an orange sherbet with chocolate cake and green frosting is perfect for Halloween.
Make the cake according to the directions on the box and bake it in the 9x13 pan.
Let the cake cool.
Unwrap the ice cream, fully removing the outer carton.
Use the fishing line to slice the ice cream in half lengthwise and set both pieces next to each other on waxed paper.
Set the cake on top of the ice cream and use a knife to trim the edges so that they're even.
Flip the cake and ice cream over carefully onto a serving platter and remove the waxed paper.
Smooth the ice cream out and place the ice cream cake in the freezer to harden.
Frost the cake as desired once the ice cream has reset.