Blackberry Lemon Ice Cream

Combine cream cheese and lemon juice in a small bowl. Beat with an electric mixer until smooth. Stir in milk. Fold in Cool Whip. Set aside. Cut pound cake into 1/4-inch-thick slices. Arrange half of cake slices in the bottom of a large glass bowl or trifle dish. Combine lemonade concentrate and 1/4 cup water in a small bowl. Brush half of lemonade mixture over pound cake; let stand 5 minutes. Brush half of jam over pound cake. Spoon half of cream cheese mixture over jam. Arrange half of berries over top. Repeat layers with remaining ingredients. Cover with plastic wrap; refrigerate overnight. Garnish with fresh mint sprigs and a lemon peel curl if desired.