Ingredients:

– 1 1/2 cups all-purpose flour – 1/2 cup granulated sugar – 1/2 cup light brown sugar – 1/2 cup unsalted butter, cold and cubed – 1 cup fresh blackberries – 1/2 cup sour cream – 1/4 cup vegetable oil – 2 large eggs, room temperature – 1 teaspoon vanilla extract – 1 teaspoon baking powder – 1/2 teaspoon baking soda – 1/4 teaspoon salt – 1/2 cup powdered sugar – 1 tablespoon milk

Steps:

1. Prepare Your Oven and Pan. Begin by heating your oven to 350 degrees Fahrenheit so it reaches the proper baking temperature. 2. Assemble the Chilled Streusel. In a medium bowl, combine the flour, brown sugar, salt, and cold, cubed butter. 3. Whisk the Dry Ingredients. In a large mixing bowl, whisk together the flour, granulated sugar, light brown sugar, baking powder, baking soda, and salt. .................. Read Full Recipe In Our Site...