Heat the oven to 160C/320F. Grease your muffin trays. I use silicon muffin trays to avoid the muffins sticking and because they're reusable
Place all the ingredients except the blueberries into a blender and blend for 1-2 minutes until the mixture is smooth and all the cream cheese and butter is combined
Add the blueberries and stir through gently
Divide the mixture between the muffin cups and place in the preheated oven, baking for 25-30 minutes until the muffins are golden brown on top and cooked through
Allow to cool in the muffin tray for 5minutes and then remove and place on a wire rack to continue cooling