Slice strawberries, toss with sugar, rest 15 minutes. Drain and pat dry.
Beat cream cheese smooth if using. Whip cold cream to soft peaks. Add sugar and vanilla. Beat to stiff peaks.
Spread thin cream layer across the bottom of the dish.
Layer crackers in a single layer breaking to fill gaps.
Spread a generous 1cm layer of cream over crackers.
Layer sliced strawberries over cream covering completely.
Repeat crackers, cream, strawberries until dish is full. Aim for three to four layers.
Finish with a flat layer of cream on top.
Arrange strawberries on top. Brush with warm jam if using.
Cover tightly. Refrigerate minimum 6 hours or overnight.
Garnish with mint. Slice and serve cold.