Remove the chilled chocolate from the fridge and spread the brownie batter over top evenly. *Note: the chocolate must be hardened before you spread this on.
Place the pan back in the fridge for 20 minutes.
Melt white chocolate in in double boiler of medium-low heat.
To the white chocolate add in the canola oil and peppermint oil. If the chocolate doesn’t melt add a teeny bit more canola to help smooth out.
Remove the pan from the fridge and pour the melted white chocolate on top.