Add the apple to a small saucepan and cover with a little water, stew until softened and then drain water and blitz into a smooth apple sauce. Allow too cool
Add the flour, baking powder and baking soda to a large jug.
Add the eggs, apple sauce and oil and then gradually add the milk, mixing as you do. Your batter should be well combined, but still a little lumpy.
Melt a little butter in frying pan or skillet over a medium high heat and add a couple of dessert spoons of the mix per pancake.
Add some blueberries to the top of the pancake and then flip over, both sides should be golden. Repeat process with remaining batter.
Serve either drizzled with some maple syrup or you can heat some more of the blueberries until they release their natural juices and pour this over the top of the pancakes.