Step 1

Preheat oven to 350 degrees F and grease a standard loaf pan.

Step 2

In a large bowl, add sugar, eggs, sour cream, lemon zest, juice, vanilla, and oil. Mix until smooth and well combined.

Step 3

In another bowl, sift together flour, baking powder, and salt.

Step 4

Slowly add the dry ingredients to the wet until fully combined, then set aside.

Step 5

For the cream cheese swirl: In a small bowl, mix together the cream cheese and powdered sugar until smooth.

Step 6

Add half of the batter to the prepared pan and spoon about half the cream cheese mixture on top, then swirl together with a knife.

Step 7

Top with the rest of the batter and spoon the remaining cream cheese mixture. Carefully swirl together to create a marbled look.

Step 8

Bake bread for 65-70 minutes, covering with foil for the last 20-30 minutes to prevent the top from browning.

Step 9

Allow the bread to fully cool before slicing to allow the cream cheese to set.