Well oh fraught one, I present you with 'Something To Do With Your Kids In Half Term'.
The fact that I make these on a regular base for my husband is neither here not there.
They take about 15 minutes in total but you can easily lengthen that out by getting the kids to do the weighing and measuring and patting down the krispie mix. You could even ice and decorate them!
So gather your small ones close and go foraging for:
50g unsalted butter
180g Rice Krispies
Over a low heat, melt the butter in a large pan and add the marshmallows. Stir until all the marshmallow is completely melted. Pour in the rice krispies and stir to coat everything. Quickly move to a greased baking tin, making sure it is packed down and even. Set the tin aside to cool and set (about an hour). Carve into squares and let the kids enjoy their treat!
*almost certainly will. Unless you use sugar free marshmallows. Is there even such a thing and if it does exist, it begs the question, should it?