- Preheat your oven to 350°F (175°C) and grease three 8-inch round cake pans.
- In a large 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 buttermilk, lemon zest, and lemon juice until combined.
- In a separate bowl, whisk together the gluten-free flour, baking powder, baking soda, and salt.
- Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
- Gently fold in the fresh blueberries.
- Divide the batter evenly among the prepared cake pans.
- Bake for 25-30 minutes or until a toothpick inserted into the center comes out clean.
- Allow the cakes to cool in the pans for 10 minutes before transferring to wire racks to cool completely.
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