Nov 24 2011
1/2 cup unsalted butter, room temperature, plus more for pan $0.45
1 1/3 cups blackberries $1.25
1 1/4 cups, plus 2 tablespoons sugar $0.24
1 1/2 cups all-purpose flour $0.21
1/2 teaspoon coarse salt $0.01
1/4 teaspoon baking powder $0.01
2 large eggs, lightly beaten $0.40
1/2 teaspoon pure vanilla extract $0.11
1/2 cup sour cream, room temperature $0.30
Total Cost $2.98
Cost per Serving $0.33
1.) Preheat oven to 350 degrees Fahrenheit. Lightly butter a 5″ x 9″ loaf pan and line with parchment, leaving a 2″ overhang on all sides; butter parchment. In a food processor, puree blackberries with 2 tablespoons of sugar. In a medium bowl, whisk together flour, salt, and baking powder.
2.) In a large bowl, using an electric mixer, beat together butter and 1 1/4 cups sugar until light and fluffy, about 5 minutes. Add eggs and vanilla and beat to combine, scraping down bowl as needed. With mixer on low, add flour mixture in 3 additions, alternating with sour cream, beginning and ending with flour mixture.
3.) Transfer half the batter to the pan and dot with 1/2 cup blackberry puree. Repeat with remaining batter and top with remaining puree. With a skewer or thin-bladed knife, swirl batter and puree together, just until beautiful lines of the fruit can be seen interspersed with the batter. Bake until golden brown and a toothpick inserted in center of cake comes out clean, about 1 1/4 hours. Let cool in pan on a wire ack. about 30 minutes. Lift cake out of pan using parchment and place on a serving plate. Let cool completely before slicing.
4.) Serve and enjoy!