Open Plum Tart

When life hands you plums, make plum-ade.. oh no, that's Lemons. Scrap that. When life gives you a surplus of plums make this - my Open Plum Tart, laced with Almonds and Apricot. You'll need:

• 300g Shortcrust Pastry
  
• 450g Plums
  
• 60g Ground Almonds
  
• 30g Flaked Almonds
  
• 75g Demerara Sugar
  
• 90g Apricot Jam
  
• 1 Egg