YIELD: Makes one loaf
4 ounces semisweet or bittersweet chocolate, chopped
1/2 cup milk, divided
1 1/2 cups all purpose flour
2 teaspoons baking powder
1/4 teaspoon salt
1/4 cup sour cream or plain yogurt
1/2 cup unsalted butter, room temperature
3/4 cup plus 2 tablespoons granulated white sugar
2 large eggs
1 teaspoon pure vanilla extract
Preheat oven to 325 degrees F and place rack in the center of the oven. Butter and lightly flour a 9 x 5 x 3 inch loaf pan. Line the bottom of the pan with a strip of parchment paper.
Melt the chocolate with 1/4 cup of the milk in the microwave, on high, stirring every 15 seconds until smooth. Set aside.