Prep. Preheat oven to 350℉. Generously spray a 9x5 or 8x4 loaf pan with nonstick spray and set aside.
Beat sugar and shortening. In a large mixing bowl, beat the shortening and sugar until light and fluffy.
Add eggs. Add the eggs one at a time, beating well after adding each one.
Mix dry ingredients. In a separate bowl, whisk together the flour, baking powder, and salt.
Combine mixtures. Slowly add the dry ingredients to the sugar mix, alternating with the milk. Stir until just mixed.
Add lemon. Add the lemon zest and juice. Use a spatula to make sure everything is well incorporated.
Bake. Put the batter into the loaf pan you prepared. Bake for 50-60 minutes or until a toothpick inserted into the center comes out clean. Let the bread cool in the pan for 10 minutes, then move it to a wire rack to cool completely.
Make the glaze. While the bread is cooling, prepare the glaze. Mix the powdered sugar, lemon zest, and lemon juice in a small bowl until smooth. Once the bread is slightly cooled but still warm, drizzle the glaze over the top. Let the bread cool completely before slicing and serving.
Cool. Allow the bread to cool down completely in the pan before removing and serving.