Preheat oven to 375 °F
Melt the butter (in the microwave is easiest) and brush the bottom and sides of your pan with some of the melted butter.
½ cup butter, melted
Combine the sugar and cinnamon and mix well to make cinnamon sugar. Remove 1 tablespoon and set aside for later.
¼ cup sugar, white granulated, 1 tbsp cinnamon
Take one sheet of phyllo and lay it with the shorter side facing you. Brush the top with melted butter. Sprinkle with cinnamon sugar and then cover with a second piece of phyllo. Fold like an accordion and then turn it to resemble a rose. Place in center of your pan. Repeat with the remaining phyllo and place each accordion strip around the phyllo already in the pan. When all the phyllo is used, and the pan is filled, brush the top with the remaining melted butter. Use a plastic knife to loosen up the phyllo strips so that the entire pan is covered and there are no areas where the phyllo is too tightly packed (this will interfere with it baking through). Bake in the middle rack of your oven for approximately 20 minutes, until golden brown.
375 grams phyllo
While your phyllo is baking, prepare the apple mixture. Core and peel your apples and cut them into thick wedges (about 1/2 centimeter thick). Place them in a pot with the sugars, cinnamon, lemon juice and water. Bring to a boil and then reduce the heat. Cook for approximately 5 minutes until the apples have softened slightly. Use a slotted spoon to set the apples aside to cool. Reserve the liquid that remains in the pot.
3 apples, ¼ cup sugar, white granulated, 2 tbsp brown sugar, 1 tbsp water, ½ tbsp lemon juice, ½ tsp cinnamon
While the apples are cooling, and the phyllo is still baking, prepare your custard. Measure our the liquid left behind by the apples and add enough milk to total 400 ml. In a large bowl combine the eggs, the milk mixture, the eggs, vanilla and the salt. Whisk well to combine.
5 eggs, ½ cup white granulated sugar, 400 ml milk, 1 tsp vanilla extract, ¼ tsp salt
Once your phyllo is out of the oven, begin to tuck the apple wedges between folds of phyllo, pushing them down so that they do not stick up too much past the top of the phyllo (this does not have to be exact). Try to distribute them evenly throughout the pan. Then, pour the custard over the phyllo and apples. Give the pan a shake to ensure that the custard is evenly distributed. Sprinkle the reserved cinnamon sugar on top of the dessert.
1 tbsp cinnamon sugar
Return pan to the oven and bake on the bottom rack for about 30 – 35 minutes until the custard is set and the top is lightly browned. Allow to cool and serve.