Not quite "baking" even in the loosest sense of the term

I've wanted to bake something for the last few weekends, but always seem to be lacking at least one out of time, energy or key ingredients. Today is a day where I'm lacking in energy, but I saw this recipe earlier, and thought that it looked like it could be pretty tasty - and it's the sort of recipe for which I think I've got enough energy to do right now!

No-bake peanut butter bars
Ingredients

• 140g Butter
• 150g Brown sugar
• 150g Caster sugar
• 270g Smooth peanut butter
• 180g Darkish (51% cocoa) chocolate

Method

1. Melt half of the butter and mix in the sugars and peanut butter.
2. Press into a foil-lined tin.
3. Melt the chocolate and the remaining butter together and pour over the top of the peanut butter mixture.
4. Refrigerate for at least 3 hours until set.
5. Cut into squares.

Talk about low effort! This might also be *the* most unhealthy thing I've baked made. I've already (fairly drastically) reduced the amount of sugar added (not, I hasten to add, on health grounds), but fundamentally, this recipe is just peanut butter with added sugar and butter!

Here's the peanut butter mixture in the pan.

Ready for the fridge!