Step 1 — Prepare the Pan
Preheat oven to 350°F (175°C).
Grease a bundt pan thoroughly.
Step 2 — Cream Butter & Sugar
Beat butter and sugar until light and fluffy.
Step 3 — Add Eggs
Add eggs one at a time.
Mix well after each addition.
Step 4 — Add Wet Ingredients
Mix in vanilla, milk, heavy cream, lemon juice, and lemon zest.
Step 5 — Add Dry Ingredients
Whisk flour and baking powder together.
Fold gently into batter.
Step 6 — Add Blueberries
Toss blueberries with flour.
Fold gently into batter.
Step 7 — Bake
Pour batter into prepared pan.
Bake 50–60 minutes or until toothpick comes out clean.
Step 8 — Cool
Let cake cool before removing from pan.
Step 9 — Glaze & Serve
Add lemon glaze if desired.
Slice and enjoy.