Preheat the oven to 350° F. Spray a 9” x 5” loaf pan with baking spray or line with parchment paper. In a medium sized bowl combine the banana, oil, eggs, sunflower butter, and vanilla extract. Mix well. 

In another bowl whisk the flour, sugar, baking powder, baking soda and salt lightly. Add the wet ingredients into the dry ingredients and mix just until combined. 

Pour into loaf pan and bake for 55-60 minutes. If the edges start to brown, cover the top lightly with tin foil so the middle can continue baking. The bread is done with the top is golden brown and firm. 

Make the glaze when the loaf is cool otherwise it will slide right off.

Combine the confectioners sugar and juice in a small bowl or cup, mix until combined. If you want it thicker add a little more confectioners sugar. If you want it thinner, add a little more juice. The glaze is foolproof! Drizzle over the cooled loaf.