01 - 
                Preheat oven to 160°C (fan) or 170°C (conventional).
              
              
              
                02 - 
                Slice peaches into wedges. Combine peaches and raspberries in a bowl. Toss with caster sugar. Transfer to an ovenproof baking dish and set aside.
              
              
              
                03 - 
                In a large bowl, mix flour, baking powder, and caster sugar. Using fingertips, rub in cold butter until mixture is coarse with visible pea-sized butter pieces. Stir in lemon zest. Add milk and mix until a soft dough forms, adding more milk if needed.
              
              
              
                04 - 
                Spoon cobbler topping evenly over the fruit in the baking dish. Sprinkle with flaked almonds and Demerara sugar if using.
              
              
              
                05 - 
                Place dish in oven and bake for 25–30 minutes until topping is golden and fruit juices bubble at the edges.