Stir sugar with boiling water in a mug. Or microwave sugar and water on high until boiling, about 1 minute. Stir in butter and rum. Sprinkle with nutmeg.
In our Summer 2025 issue, we get real about what sex is like after 40. Plus, living together after divorce, our favourite beauty products of the year and 17 incredibly summery recipes, from ceviche to sour cherry cobbler.