preheat oven to 350 degrees.
Mix butter, sugar and vanilla until incorporated.
Add eggs, and mix until smooth.
Add in dry ingredients, white chocolate and cranberries and mix until incorporated and smooth.
Remove dough from bowl and place on a parchment paper lined baking sheet.
(Make one large or two equal logs, I prefer 2). Halve the dough and roll the dough into a foot long log. Making it even in thickness and height. Smack the dough into shape, patting end in so they are of similar width.
Allow 1.5-2 inches inches between each dough logs and side of the pan.
Bake for 25 minutes. (if baking one log bake for 32 minutes)
Remove from oven.
Lower oven to 325 degrees.
Allow biscotti to stand 3 minutes.
Carefully cut into ½ inch wide slices with a large sharp chefs knife
Turn slices onto one size, allowing a little space between each.
Bake for 10 minutes.
Remove from oven and carefully flip each piece to the opposite side.
Bake for 10 more minutes.
***If you want rock hard biscotti, do not lower oven temp and cook an additional 3-5 minutes per side.