Preheat oven to 350 degrees.
Sift flour, baking soda, salt and baking powder into a large bowl.
In a second bowl, combine the sugar, applesauce, vanilla, egg, lemon zest and lemon juice. Mix well.
Slowly mix the wet ingredients into the dry ingredients.
Add the poppy seeds and mix well.
Spray a bread loaf pan with cooking spray.
Pour batter into the loaf pan, then put in the oven and cook from 25-35 minutes. Check the doneness by inserting a toothpick into the center, if it comes out clean, you’re good (if there’s batter on the toothpick, back for another 2-4 minutes.)
Remove bread from the oven and let cool in the pan for 5-8 minutes.
Remove the loaf from the pan, by turning it upside down. Place loaf on a wire rack to continue cooling.
Combine all frosting ingredients in a bowl and mix.
Slowly pour the frosting over the loaf. If it drizzles down the side, that works, I think it looks cool.
That’s all! Slice into 1 inch potions and enjoy!