Preheat oven to 180°C and grease or line an 9'' by 5'' (23 cm x 13 cm) bread loaf pan with parchment paper.
Sift the dry ingredients (all-purpose flour,baking powder, salt, and cinnamon) into a bowl·
Separately mash the banana with a fork in a bowl then set aside.
In another bowl, whisk the oil, yoghurt, vanilla extract, and sugar until well combined. Add the eggs, a little at a time, then whisk. Gradually add the dry ingredients (the flour mixture) to the wet ingredients, then carefully fold using a spatula.
Fold the mashed banana into the mixture, pour the batter into the loaf pan, and bake for 45-60 minutes, or until a toothpick inserted in the middle comes out clean.
Allow the banana bread to cool for at least 15 minutes before removing it from the pan, then transfer to a wire rack so it cools completely.
Serve with some coffee, tea, a glass of milk, or as preferred.