Superfood packed sweet treat copied from Asda's instore magazine. *Use the full amount (or very near to) of butter/marg. My first go at these were lovely, although I was a little alarmed at the amount of butter that pooled on the top. I mopped it up with paper towel. On the second attempt, I made a larger amount which should have taken an entire block of butter. I balked and used around 50-60g less butter than suggested, and although the result was edible, it was greatly preferred with the full amount of butter.