1/2 cup butter, softened
1/4 cup powdered sugar
1 cup flour
Combine the above in a small bowl and mix well. Pat into an 8" square pan that has been sprayed with Pam. If desired, you can line the bottom of the pan with parchment paper. Bake at 350 degrees for about 15 minutes, or until very lightly browned.
2 eggs, beaten
2 tbsp grated lemon zest and fresh lemon juice *Note: You will get about 1 tbsp of zest and juice out of a good-sized lemon
1 cup granulated sugar
2 tbsp flour
1/2 tsp baking powder
Combine all of the filling ingredients in a large bowl and beat well. Our over the partially baked crust and bake an additional 20-25 minutes, or until the filling has set. During the baking time, turn the pan around a couple of times to ensure even baking. Do not over bake. Cool and frost.
1 1/2 cups powdered sugar
2 tbsp butter, softened
1 tbsp milk, or more to reach desired spreading consistency (I added more, and I used whole milk)
1 tsp vanilla extract (I used lemon extract)