1Bring milk to a boil, whisk constantly, add sugar and orange blossom water. Once boiling, slowly add cornstarch slurry (cornstarch dissolved in cold milk), whisking constantly until thick and bubbly. Pour into serving bowls and chill.
2Make the orange layer: bring orange juice to a boil, whisking constantly. Slowly add cornstarch slurry (cornstarch dissolved in cold water or orange juice), whisking until thickened. Remove from heat.
3Pour the orange layer over the chilled milk layer. Chill overnight (at least 4 hours). Garnish and enjoy!