01 -
Preheat oven to 175°C. Lightly grease a standard 23 cm pie dish.
02 -
In the bowl of an electric mixer, cream together butter and sugar until light and fluffy. Add egg and vanilla extract; beat until incorporated.
03 -
Reduce mixer speed to low. Sift in flour, baking powder, baking soda, and salt. Mix just until a soft dough forms.
04 -
Evenly press the cookie dough into the base and up the sides of the prepared pie dish. Set aside.
05 -
Using an electric mixer, beat cream cheese and sour cream together on medium-high speed until smooth and fluffy, about 2 minutes. Scrape down the bowl and beat for an additional minute.
06 -
Add sugar and corn starch to the cream cheese mixture. Mix thoroughly to ensure a smooth batter.
07 -
Pour the cheesecake filling over the cookie crust and spread evenly. Bake for 20–25 minutes until just set. Remove from the oven and allow to cool completely.
08 -
Warm Dulce de Leche slightly for easier spreading. Evenly distribute over the cooled cheesecake layer.
09 -
Finely chop baking milk chocolate and place in a small heatproof bowl. Heat heavy cream until just simmering, then pour over the chocolate. Allow to sit briefly, then whisk gently until smooth and glossy.
10 -
Pour chocolate ganache over the center of the pie and carefully spread to cover the Dulce de Leche layer.
11 -
Allow pie to cool to room temperature, then refrigerate for at least 4 hours before serving.