If you want your bars on the sweeter side, you can add more maple syrup, agave nectar, or honey. You can also experiment with different yogurt flavors to complement the fruit you are using. Try ...
In a large bowl add the flour, buckwheat flour, baking powder, baking soda and salt. Mix to combine and make a well in the centre. In another bowl add the egg, yoghurt, milk and vanilla and mix ...