Milk Tart

Name: Milk Tart
Prep time: 15 min
Cook time: 8 h 45 min
Total time: 8 h 45 min
Yield: 8 slices
Ingredients: 50 g unsalted butter; 50 g sugar; 150 g plain flour; 1 medium egg; 1 tsp baking powder; 1 pinch fine sea salt; 15 g plain flour; 100 g sugar; 400 g milk; 2 Tbsp cornflour; 1 medium egg; 10 g unsalted butter; 2 tsp vanilla extract; ground cinnamon