做法:
1. Preheat oven to 350F°. Spray a 8-inch cake pan with cooking spray with flour (like Baker’s Joy) or just grease and flour; set aside.
2. Using an electric mixer on medium speed, beat the butter and cream cheese until creamy, about 3 minutes. Gradually add sugar and beat well. Add egg and beat well .
3. In a bowl, combine flour, baking powder and salt. Add to butter mixture slowly with mixer on low speed. Stir in vanilla. Gently fold in berries by hand. The batter will be very thick. Pour into prepared pans and smooth top gently with spatula. Pull the crumb mix from the refrigerator and ,with your fingertips, break it into pieces. There's no need to try to get even pieces--they are supposed be lumpy and bumpy. Scatter the crumbs over the batter, pressing them down ever so slightly.
4. Bake for about 55 minutes. or until the crumbs are golden and a think knife inserted into the center of the cake comes out clean.Transfer the cake to a rack and cool just until it is warm or until it reaches room temperature.