For the Lemon Glaze (optional but recommended):
- 1 cup powdered sugar
- 2–3 tablespoons fresh lemon juice
- 1 teaspoon lemon zest (for extra zing)
Step-by-Step Instructions
Step 1: Prep
- Preheat oven to 350°F (175°C).
- Grease and line a 9×5-inch loaf pan with parchment paper (overhanging edges for easy removal).
Step 2: Mix Dry Ingredients
- In a medium bowl, whisk together flour, baking powder, baking soda, and salt.
- Set aside.
Step 3: Cream Butter & Sugar
- In a large bowl, beat softened butter and granulated sugar with a hand mixer or stand mixer until light and fluffy (about 2–3 minutes).
Step 4: Add Eggs & Flavor
- Beat in eggs one at a time, mixing well after each.
- Add vanilla, lemon zest, and lemon juice. Mix until combined.
Step 5: Add Sour Cream & Dry Mix
- Mix in sour cream (or Greek yogurt) until creamy.
- Alternate adding dry ingredients and milk, beginning and ending with the dry mix. Mix gently until just combined—don’t overmix.
Step 6: Fold in Blueberries
- Toss blueberries in 1 tablespoon flour (prevents sinking).
- Gently fold them into the batter with a spatula.
Step 7: Bake
- Pour batter into prepared loaf pan and smooth the top.
- Bake for 50–60 minutes, or until a toothpick inserted into the center comes out mostly clean (a few moist crumbs are okay).
- If the loaf browns too quickly, tent with foil after 40 minutes.
- If the loaf browns too quickly, tent with foil after 40 minutes.