To make the box you need to trim half of an inch off the long side, to make the paper 8 1/2 by 10 1/2. Then you need to score that paper at 1 1/2 in, 5 in, 6 1/2 and 10in, along the long side, then turn the paper and make another score at 1 1/2 inches.
cut off the small rectangle made by your score lines, you can see where I've cut mine in this picture. You also need to cut along the score lines up to the 1 1/2 inch line you made.
Fold your box and use a strong adhesive, like sticky strip, to glue it together. I also added a crease line to the sides so that it closed nicely.
I added a tab punch and some ribbon to the top, as a closure for the box. In the background of this picture you can see the Blossom Builder Kit. Fill it with something, I recommend Chocolate, and you're done! Yea! So fast!