01 - 
                Preheat oven to 200°C/400°F. Grease and line 20cm/8" pan with paper overhang.
              
              
              
                02 - 
                Mix melted butter with sugar, add egg, then mix in flour, oats, baking powder and salt.
              
              
              
                03 - 
                Spread 1 1/2 cups mixture in pan, top with jam, crumble remaining mixture over top.
              
              
              
                04 - 
                Bake 30-35 minutes until deep golden.
              
              
              
                05 - 
                Cool completely about 2 hours, then lift out using paper and cut into 16 squares.