Blueberry Fluff & this recipe I came across is so delicious 
Ingredients
21 oz blueberry pie filling
1 ¼ cup sweetened condensed milk
4 cups whipped topping (such as Cool Whip), thawed but still cold
½ cup sour cream
2 cups mini marshmallows
1 ¾ cup pineapple chunks
1 cup sliced almonds
1/2 cup fresh blueberries
Instructions
In a large mixing bowl, stir together the blueberry pie filling, sweetened condensed milk, whipped topping and sour cream.
Fold in the mini marshmallows, pineapple and almonds, pineapple chunks until well combined.
Cover with plastic wrap and chill in the fridge for 30 minutes before serving.
Serve cold.
