This was an old recipe I found in mum's cookbook. It was originally just the peanut butter slice; to make it a bit more exciting I melted some chocolate over the top - great idea!
Tip to make the chocolate smooth - melt the chocolate as thin as you can without burning it and pour a thin layer over the top (basically just to fill in the cracks with the rice bubbles). Allow that to set. Pour another layer and smooth this one out.
4 cups rice bubbles
1 cup chopped peanuts
1/2 cup brown sugar, firmly packed
1/2 cup honey
1/2 cup peanut butter
approx 500g milk chocolate
1. Place honey, peanut butter and brown sugar in a saucepan on medium heat and stir until melted.
2. Mix with rice bubbles and peanuts.
3. Press into a lamington pan.
4. Melt milk chocolate (microwave in a bowl on 30 second increments, stirring each time) and pour over.
5. Refrigerate to set.
Source: Adapted from Mum's cookbook