Preheat oven to 350 degrees F (180C)
Lightly grease two loaf tins, and line with baking paper.
Sift dry ingredients into a bowl and set aside.
Put butter, sugar and syrup into a large saucepan and melt together over a low heat.
Remove from heat, and mix in dry ingredients.
Now add beaten eggs and milk, and lastly mashed bananas. Mix well with a wooden spoon.
Pour mixture into your two prepared loaf tins, and bake for approximately 40 minutes, or until a skewer inserted in the centre comes out clean.