01 - Dissolve the strawberry gelatin in 1 cup boiling water in a large mixing bowl. Stir in 1/2 cup cold water to cool slightly.
02 - Add sliced strawberries, crushed pineapple, and mini marshmallows to the gelatin mixture. Fold gently until evenly combined. Pour into a 9x13-inch dish and refrigerate until fully set, approximately 2 hours.
03 - In a medium bowl, beat the softened cream cheese and granulated sugar with an electric mixer until smooth and creamy. Gently fold in the whipped topping until no streaks remain. Spread the mixture evenly over the chilled, set strawberry layer.
04 - Melt the butter in a skillet over medium heat. Add the brown sugar, stirring constantly until dissolved. Add the crisped rice cereal and chopped pecans, cooking and stirring for 4 to 5 minutes until lightly caramelized and golden. Transfer to a baking sheet, spread in an even layer, and let cool completely.
05 - Just before serving, sprinkle the cooled crackle topping evenly over the creamy layer. Serve immediately for the best crunch texture.