Step 1
In a small bowl, mix the custard powder with ¼ cup of cold milk. Stir until completely smooth with no lumps.
Step 2
Pour the remaining milk and sugar into a heavy-bottomed pan. Bring it to a gentle boil over medium heat.
Step 3
Lower the heat. Slowly pour the custard slurry into the boiling milk while stirring constantly. Continue to cook for 3–4 minutes until the mixture thickens and coats the back of a spoon.
Step 4
Turn off the heat and let the custard cool slightly for 2 minutes. Stir in the fresh mango puree and mix thoroughly until the color is vibrant and uniform.
Step 5
Lightly grease small fluted molds or ramekins with a drop of oil. Pour the warm mixture into the molds. Let them cool to room temperature, then refrigerate for at least 2–3 hours until firmly set.
Step 6
Gently unmold the puddings into small bowls. Top with cahewnuts..