1 (8 1/2 oz) pkg. chocolate wafer cookies, crushed (about 2 c.) 3/4 c. sugar, divided 1/4 c. + 1 T. butter, melted 2 (8 oz) pkgs. cream cheese, softened and divided 3 eggs, divided 1 tsp. vanilla, divided 2 (1 oz) sqs. semisweet chocolate, melted 1 1/3 c. sour cream, divided 1/3 c. dark brown sugar, firmly packed 1 T. flour, all-purpose 1/4 c. pecans, chopped 5 oz cream cheese, softened 1/4 tsp. almond extract Chocolate glaze Chocolate leaves (optional) Combine cookie crumbs, 1/4 c. sugar & butter in med. bowl; blend well. Press into the bottom and 2" up sides of 9" springform pan. Set aside. Combine 1 (8 oz) pkg. cream cheese & 1/4 sugar; beat until fluffy. Add 1 egg and 1/4 tsp. vanilla; blend well. Stir in melted chocolate and 1/3 c. sour cream. Spoon over chocolate crust. Combine remaining 8 oz pkg cream cheese, brown sugar and flour; beat until mixture is fluffy. Add 1 egg and 1/2 tsp. vanilla; blend well. Stir in pecans. Spoon gently over chocolate layer. Combine 5 oz cream cheese and remaining 1/4 c. sugar; beat until fluffy. Add egg; blend well. Stir in remaining 1 c. sour cream, 1/4 tsp. vanilla and almond extract. Spoon gently over praline layer. Bake at 325 degrees for 1 hour; turn off oven and leave cheesecake in oven for 30 minutes; open door of oven and leave cheesecake in oven an additional 30 minutes. Cool. Chill 8 hours. Remove from pan. Spread warm chocolate glaze over cheesecake. Garnish with chocolate leaves, if desired.