Blueberry Cream Cheese Loaf: The Ultimate Swirled & Streusel-Topped Masterpiece

Step 5: Make the Loaf Batter

1. In a medium bowl, whisk together flour, baking powder, and salt. Set aside.
2. In a large bowl, beat butter and sugar together until light and fluffy, 2-3 minutes.
3. Add eggs one at a time, beating well after each addition. Scrape down the bowl as needed.
4. Beat in vanilla extract.
5. With the mixer on low, add the flour mixture in three additions, alternating with sour cream in two additions, beginning and ending with flour. Mix just until combined—do not overmix.
6. Gently fold in the flour-coated blueberries.

Step 6: Layer and Swirl

1. Spread half the batter into the prepared loaf pan.
2. Spoon the cream cheese mixture over the batter, spreading it gently but not mixing it in completely.
3. Top with the remaining batter, spreading carefully to cover.
4. Use a knife or skewer to gently swirl through the loaf—just a few figure-eight motions. You want ribbons of cream cheese, not fully incorporated streaks.
5. Sprinkle the streusel topping evenly over the top.

Step 7: Bake

Bake for 55-65 minutes, until a toothpick inserted in the center comes out clean or with just a few moist crumbs (avoid hitting a cream cheese pocket for testing).

If the top is browning too quickly (after about 40 minutes), tent loosely with foil.

Step 8: Cool