At medium heat, add fresh milk and butter till butter melted and add instant coffee powder into it, stir well. Add cream cheese into it and stir with a hand whisk until smooth.
Add egg yolks and combine. Stir in sifted flour and corn flour and cinnamon. Stir till smooth, add vanilla extract and coffee paste. Do not boil.
In a mixing bowl, whisk egg whites until foamy and add sugar. Continue to beat at medium speed until soft peak form.
Gently fold well half of the egg white into the egg yolk mixture. Then fold in the rest of the egg white.
Pour the mixture into a greased 9" cake tin lined with baking paper below. Bake in water bath at 150C for about 50-55 minutes.
Leave cake in room temperature to cool and chill for a few hous before serving.
Recipe by Anncoo Journal at https://www.anncoojournal.com/cinnamon-cheesecake/