This lightened version of a traditional sour cream pound cake calls for a reduced amount of butter and low-fat sour cream. It's citrusy flavor comes from fresh lemon juice, lemon rind and lemon extract in the batter and the sweet lemon glaze that's drizzled on top of the cake.
Coat a 10-inch tube pan with cooking spray, and dust with the breadcrumbs.
Lightly spoon flour into dry measuring cups; level with a knife. Combine flour, baking soda, and salt in a bowl; stir well with a whisk. Beat the butter in a large bowl at medium speed of a mixer until light and fluffy. Gradually add the granulated sugar and lemon extract, beating until well-blended. Add eggs, 1 at a time, beating well after each addition. Add grated lemon rind and 2 tablespoons lemon juice; beat 30 seconds. Add flour mixture to sugar mixture alternately with sour cream, beating at low speed, beginning and ending with flour mixture.
Spoon batter into prepared pan. Bake at 350° for 1 hour and 10 minutes or until a wooden pick inserted in center comes out clean. Cool in pan 10 minutes on a wire rack; remove from pan. Cool completely on wire rack. Combine 2 tablespoons of lemon juice and powdered sugar. Drizzle glaze over top of cake.