Step 1

Prepare boxed mix brownie with eggs and oil and bake according to packet instructions. You can do this the day before to save time.

Step 2

Once cool cut the brownies into 1 inch squares and set aside in 3 equal piles.

Step 3

Raspberry sauce: Add frozen raspberries and caster sugar to a glass jug, microwave on high for 1 minute then stir. Microwave for another minute then stir again. Set aside to cool until ready to assemble.

Step 4

To assemble: Place half of the sliced strawberries in the bottom of a trifle dish or large serving bowl.

Step 5

Pour over a third of the raspberry sauce. Add the first layer of brownie pieces. Carefully spoon over half of the whipped cream.

Step 6

Next add a layer of custard and smooth it to the edges with a spoon. Add another third of raspberry sauce and the second layer of brownies.

Step 7

Place the rest of the strawberries on top and the rest of the custard, smooth to the edges.

Step 8

Now add the third layer of brownies and the last of the raspberry sauce. Top with the rest of the whipped cream and spread until the top is smooth.

Step 9

Decorate with crumbled Flake, fresh raspberries and a sprinkle of icing sugar.

Step 10

Refrigerate for at least 3 hours before serving or preferably overnight.