Ingredients
Method
Preparation of Filling
- Beat softened cream cheese with 1/4 cup sugar until smooth. Add egg yolk and 1/2 teaspoon vanilla and beat until creamy. Set aside.
Preparation of Crumble (Optional)
- Whisk 1/2 cup flour, 1/4 cup sugar, brown sugar, and cinnamon together. Cut in cold butter until coarse crumbs form. Set aside.
Batter Preparation
- Preheat the oven to 350°F (175°C). Grease and flour a 9x5-inch loaf pan.
- In a medium bowl, whisk together 3 cups flour, baking soda, and salt.
- In a large bowl, cream together 1 cup sugar and 1/2 cup softened butter until light and fluffy.
- Beat in eggs one at a time, then stir in 1 teaspoon vanilla.
- Gradually add dry ingredients, alternating with 1 cup sour cream, beginning and ending with the dry ingredients. Mix until just combined—do not overmix.
- Gently fold in 1 cup fresh blueberries so they stay whole.
Assembly and Baking
- Pour half the batter into the prepared pan. Spoon the cream cheese filling down the center, leaving room at the edges. Pour remaining batter over and smooth lightly.
- If using, sprinkle the crumble topping evenly on top and dot with extra blueberries.
- Bake for 55–65 minutes, or until a skewer comes out clean. Tent with foil if the top browns too quickly.
- Let cool in the pan for 10–15 minutes, then transfer to a rack to cool completely before slicing.
Notes
Use room-temperature cream cheese and butter for faster blending. If berries sink, toss them in a tablespoon of flour before folding to help them suspend. For extra brightness, stir a teaspoon of lemon zest into the batter.
