Preheat the oven to 350 degrees Fahrenheit.
Grease a bundt pan and set aside.
In a large-sized bowl, combine all dry ingredients; set aside.
ln a medium bowl beat butter, eggs, sugar, lemon, buttermilk, lemon juice, and extract
Add wet ingredients slowly into dry ingredients, and mix well.
Fold in blueberries into the batter.
Spoon batter evenly into your greased bundt pan.
Bake for 50 minutes or until a toothpick comes out clean when placed in the center.
Allow bundt cake to fully cool before transferring it to a dish or server.