Heat the oven to 350°. Butter an 8-inch tube or bundt pan. Combine the first 4 ingredients and salt in the bowl of an electric mixer. Mix on low speed until ingredients are combined. Cut the softened butter into tablespoon-size pieces and add to dry ingredients. Mix on low speed about 20 seconds. Add the eggs, 5 tablespoons lemon juice and zest. Mix on high speed for 3 minutes. Pour batter into prepared pan and bake 35 to 40 minutes (inserted toothpick should come out clean). Let the cake cool in the pan for 10 minutes, then invert onto a wire rack and remove the pan. Cool completely before adding the glaze.

Glaze: Combine 2 to 3 tablespoons fresh lemon juice and confectioners' sugar.