Heat the oven to 350 degrees.
Line a bread loaf pan with parchment paper on all sides, letting it hang over the edges.
Spray the parchment paper with cooking spray.
Mix the first 7 ingredients in a large mixing bowl with an electric mixer for 2 minutes.
Pour the batter into the lined loaf pan.
Bake for 1 hour or until an inserted toothpick comes out smooth.
Let cool for 20 minutes inside the pan and 1 1/2 hours outside the pan.
Mix the last 2 ingredients in a small bowl with a whisk until smooth.
Drizzle the lemon frosting over the cooled lemon pound cake.
Let the frosting set and then cut into 8 1 inch slices.