Preheat oven to 350℉.
In a bowl, mix together the flour, baking soda, baking powder, cocoa powder, and salt.
1 ½ cups all purpose flour, sifted, ½ teaspoon baking soda, 2 teaspoons baking powder, ¾ cup cocoa powder, ½ teaspoon salt
In a separate bowl or stand mixer, whisk together butter, sugar, and eggs.
1 ½ cups granulated sugar, 2 tablespoons unsalted butter, softened, 2 large eggs
Then, add the melted chocolate bar, canola oil, heavy cream, vanilla extract, and brewed coffee, and mix everything together.
2 ounce chocolate bar, melted, ⅓ cup canola oil, 1 cup heavy cream, 1 teaspoon vanilla extract, ¾ cup brewed coffee
Finally, slowly add dry ingredients to mixer, one-third at a time, and mix just until all ingredients are combined.
Line a cupcake pan with liners and fill each about halfway with batter.
Bake for 20-22 minutes or until toothpick comes out clean.
Place finished cupcakes on a cooling rack and let cool.