Preheat the oven to 180℃/250℉. Line a 12-cup muffin pan with paper liners or use a silicone muffin tray. In a large bowl, mix all the wet ingredients.
Mix the dry ingredients together in a separate bowl.
Now add the dry ingredients to the wet ones and gently mix with a whisk or silicone spatula.
Add the berries and gently fold into the muffin batter. You can leave a few berries aside.
Fill the muffin cups until they are about ¾ filled. Add the berries you have left aside on top now.
Bake for about 20 minutes.
Take out from the oven when baked and allow to cool for a few minutes before taking out the muffins from the tin and fully cooling on a wire rack. Serve to your liking.