Pre-heat the oven to 175°C (350ºF).
Whisk the sugar and eggs together until light and fluffy.
Add the honey, lemon juice, vanilla, yoghurt and oil, and beat until smooth.
Sift the flour, baking soda and baking powder together and add to the wet ingredients, stirring well.
Lastly, gently stir in the blueberries (see note 2).
Pour into a prepared loaf tin - mine was 25cm x 12cm (9¾" x 4¾") and bake for around 30-40 minutes until an inserted skewer comes out clean. If the top is browning too quickly, just place a sheet of foil over the top.
Leave to cool in the tin for a while, then turn out onto a wire rack.