Fill 2 small pots with a couple inches water and place a glass bowl on top of each of them, making sure the bottom of the bowl does not touch the water. You may also use a double boiler.
Place the white chocolate in 1 bowl and the dark chocolate in the other. Bring the water to a boil. Reduce heat to maintain a simmer.
With separate rubber spatulas, stir both pots of chocolate until melted and glossy.
Add the peppermint oil to the white chocolate and stir. Remove from heat.
Pour the melted dark chocolate onto a parchment paper-lined rimmed cookie sheet. Working quickly, use a wood graining tool from hardware store, to create wood grain look on the bottom layer of bark.
Pour the melted white chocolate on top. Spread evenly with an offset spatula.
Sprinkle the cherries evenly over the top.
Let sit at room temperature for 1 to 2 hours or refrigerate for 20 minutes, until firm. Break into pieces before serving.
NotesMakes a great gift! Bundle in small gift bags.