I used boxed cake mix because it was easy, but you can most certainly substitute your favorite from — scratch vanilla cake recipe! (eatpicks.com)
I was really frustrated that I couldn't find a recipe online (most of them were made with boxed cake mix), so I sort of just made this up. (aweekfromthursday.com)
I usually keep several boxed cake mixes in my pantry, and I can whip out one of these recipes and impress my surprise company with a delicious dessert or snack in no time. (recipelion.com)