Peppermint Bark

Prep time: 20 min
Cook time: 10 min
Total time: 2 h 30 min
Yield: 1 1/4 pounds
Ingredients: 8 ounces high-quality semisweet chocolate, broken into pieces; 2 teaspoons canola oil, divided; 1/2 teaspoon peppermint extract, divided; 8 ounces high-quality white chocolate, broken into pieces; 25 peppermint candies, crushed