Finely chop 1 Tablespoon of fresh rosemary and combine with heavy cream in small bowl. Allow to sit while you gather your ingredients and prepare the batter. Preheat oven to 350° F. Roughly chop the candy cane kisses.
In a large bowl or stand mixer, combine butter and sugar. Mix until combined. Add eggs & vanilla and mix until incorporated.
Combine flour, salt, and baking powder in a mixing bowl. Whisk to combine. Add ½ flour mixture to the wet ingredients and mix on low until incorporated. Repeat with remaining flour mixture.
Add rosemary cream and mix on medium until incorporated. Add chopped candy cane kisses and mix on low until they are mixed into the batter. Don't over mix.
Line a cookie sheet or sheet pan with parchment paper. Lightly flour the parchment paper or if you aren't using parchment, flour the pan. Dump the batter onto the pan and divide in half.
Flour your hands and start forming a log out of half the batter (see post for more details). Your logs should be around 10-12 inches long and about 2-3 inches wide.
Put the pan(s) in the oven (preheated of course) for 30 minutes. When done, remove from oven and allow to cool completely.
With a sharp (serrated is my choice) knife, cut the biscotti straight down like you are cutting bread. I do this on a diagonal, but that is not necessary.
Place each piece of cut biscotti cut side down on the cookie or sheet pan lined with parchment (it does help) and bake for 7 minutes. Remove from oven and gently flip them over. Bake an additional 7 minutes. Remove from oven and allow to cool.
Crush candy canes & Melt white chocolate (see post for tips). Drizzle over cut side of biscotti. Sprinkle with crushed candy canes and colored sugar if desired. Enjoy!