Preheat oven to 350 F and line a cake pan with parchment paper and grease with oil of choice.
In a large bowl, add each ingredient up until salt, one at a time, whisking well in between each. Fold berries into the batter.
Fold berries into the batter, and pour into prepared cake pan. Bake for approx. 30-35 minutes or until a toothpick comes out clean. Alternatively, you can add the batter to 12 muffin tins and bake for 25-28 minutes or until a toothpick comes out clean.