for Twinkies
In a large bowl cream butter & sugar with a hand mixer & beat until light & fluffy.
Add eggs, egg yolk, & vanilla extract to butter/sugar mixture & beat until incorporated.
Scrape the sides of the bowl & continue mixing.
Add flour, baking powder, salt, & milk. Mix on low speed until well incorporated.
Plug in unit, spray with baking spray & fill each cavity until ¾ full.
Bake between 4-7 minutes or until toothpick inserted in center comes out clean.
Remove Twinkies & allow to cool.
Once the Twinkies are cooled, fill with frosting & enjoy!
for filling:
With an electric mixer beat together vegetable shortening & butter until blended.
Turn the mixer down to its lowest setting & gradually add powdered sugar until incorporated.
Once incorporated, turn mixer on high speed & beat until light and fluffy, about 5 minutes.
Gradually beat in vanilla extract and corn syrup until the filling is the consistency of mayonnaise, about 2 minutes more.
Fill pastry bag. Inject about one tablespoon in three locations on the underside of each cooled Twinkie & enjoy!