Preheat oven to 180 degrees C. Place the flour, baking powder and sugar in a bowl. Place the oil, egg, milk and vanilla in a separate bowl and whisk to combine. Pour the liquid ingredients into the dry ingredients and mix until just combined. Add the blueberries and mix to combine.
2.
Spoon mixture into a 12 muffin tin. Sprinkle the tops with sugar. Bake for 30-35 minutes or until cooked when tested with a wooden toothpick. Cool on a wire rack.
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