This cake is amazing and since you may not have $100's of dollars for real Twinkies! And bonus...it's EASY!
1 box yellow cake mix
1 can Eagle brand condensed milk
Bake cake as directed in 9x13.
Easy peasy, lemon squeezy!
Remove cake from oven, pierce top with fork but not through to bottom of pan.
Pour condensed milk over top to seep through holes.
After cake has cooled top with cool whip and refrigerate for 3 hours.