Directions

1. Preheat oven to 350F (175C).
2. Grease and flour a 9x5-inch loaf pan.
3. In a bowl, whisk together flour, baking powder, baking soda, and salt.
4. In a separate bowl, cream butter and sugar until light and fluffy.
5. Add eggs one at a time, beating well after each addition.
6. Mix in sour cream, lemon zest, lemon juice, and vanilla extract.
7. Gradually add dry ingredients to wet ingredients, mixing until just combined.
8. Pour batter into prepared pan and smooth top.
9. Bake 50 minutes or until a toothpick inserted comes out clean.
10. Cool in pan for 10 minutes, then transfer to wire rack to cool completely.