01 - Combine the dried fruit and hot black tea in a bowl. Cover and let soak for at least 1 hour, or overnight for optimal results, until the fruit has plumped up.
02 - Preheat the oven to 340°F. Grease a 2 lb loaf tin and line it with parchment paper.
03 - Whisk together the sugar, egg, and melted butter in a large mixing bowl until smooth.
04 - Add the soaked fruit along with any remaining tea liquid to the wet mixture. Stir until evenly distributed.
05 - Sift the flour, baking powder, cinnamon, nutmeg, and salt into the bowl. Add orange zest if using. Gently fold until just combined—avoid overmixing.
06 - Transfer the batter to the prepared loaf tin and smooth the top with a spatula.
07 - Bake for 55–65 minutes, or until a skewer inserted into the center comes out clean.
08 - Let the cake cool in the tin for 10 minutes, then remove to a wire rack to cool completely. Dust with powdered sugar if desired. Slice and serve plain or with butter.