* Peach halves should be drained, and then pureed.

Combine margarine and sugar until light and fluffy. Blend in egg. Add flour; mix well. Spread dough onto bottom of 9-inch springform pan. Bake at 450 degrees F., 10 minutes. Combine cream cheese, sugar and flour; mixing at medium speed on electric mixer until well blended. Add eggs, one at a time, mixing well after each addition. Add peaches and liqueur; mix well. Pour over crust. Bake at 450 degrees F., 10 minutes. Reduce oven temperature to 250 degrees F.; continue baking 65 minutes. Loosen cake from rim of pan; cool before removing rim of pan. Chill. Garnish with additional peach slices and sliced almonds, if desired.