No, keberoxu, that's way too sugary for me to even think about! Butternuts are sweet to start with, and then adding bucketloads of sugar AND condensed milk!! No thanks! LOL

On the other hand, mentioning Rice Krispies, which I assume is the same or similar to the Rice Bubbles we get here, reminds me of a couple of recipes.

One is called peanut butter honeys, which is similar to this recipe Peanut Butter Rice Bubble Slice. Seriously yummy and very easy to make. One of my all time favourite recipes. I substitute gluten free rice bubs if necessary.

The other is White Christmas. There are various recipes and I vaguely remember - possibly, maybe - that some of the recipes used condensed milk but I might be mixing it up with something else. I'm going back a few decades since I ate it, let alone made it.