Preheat your oven to 350°F (175°C) and grease two 8-inch round cake pans.
In a mixing bowl, cream together the softened butter and sugar until light and fluffy.
Add the eggs one at a time, mixing well after each addition.
Stir in the lemon zest and juice along with the vanilla extract.
In a separate bowl, whisk together the flour, baking powder, and baking soda.
Gradually add the dry ingredients to the wet mixture, alternating with buttermilk, until just combined.
Gently fold in the raspberries, being careful not to break them.
Divide the batter evenly between the prepared pans.
Bake for 30-35 minutes or until a toothpick comes out clean.
Let the cakes cool in the pans for 10 minutes before transferring them to a wire rack to cool completely.