The Book says, “This method for inserting a neckline placket is faster and less costly. However, there is an unfinished look on the inside of the garment.” This is definitely the easiest of the three neckline plackets I did this past week, but The Book is pretty snooty about using it only for “Budget” garments, which explains the name of it, I guess.
Okay, in addition to the front of the garment, you need two placket pieces; an under placket and a top placket. The under placket should be slightly more narrow than the top placket, but The Book didn’t give any ratios or more information than “slightly”. So good luck with that.
Fold in half along the length, right sides together.
Flip the top of the garment back up and flip the placket pieces both back to the front. Note the unfinished inside. So budget, I know.
Because you sewed the bottom, they should still stay layered, creating the finished budget placket.