
Preheat oven to 350°. Cream butter, sugar and egg yolk. Fold in flour, baking powder and salt.
Press into 9" springform pan that has been greased and lined with a circle of parchment. Bake about 15 Minutes. Remove from oven. Lower oven temperature to 325°.
At low speed, mix cream cheese and sugar. Stop mixer & scrape down the sides of bowl. Add cream, lemon zest and juice. Mix at low speed. Add eggs one at a time, mixing slightly after each.
Wrap spring form with foil to come up above the top. Pour batter into pan.
Place pan in a large baking pan and pour ½" of water into the larger pan. Bake about 65 Minutes at 325° or until firm except at the center.
Remove springform from large pan and chill completely before removing cheese cake from springform. Decorate with lemon wedges.
