Wash mango in running water well. Peel the skin off from the mango with a peeler. Then slice them into pieces. Transfer the mango slices into a blender. Grind it into a smooth paste. Set aside.
Take water in a pan and bring to a boil. Then add oats to it. (If using the whole oats, Grind it in a mixer to a slightly coarse powder and use)
Mix well with a whisk. Make sure that no lumps are formed. Cook the oats in low, medium flame for 3 to 5 minutes or until it is thoroughly cooked. Keep stirring while cooking.
Once the oats are thoroughly cooked, add ground mango puree and nuts powder.
Then add sugar(skip sugar for babies below one year) and cardamom powder.
Mix well. For babies below one year, switch off the porridge at this stage & add breastmilk or formula when the porridge is warm.
Once the oats are thoroughly cooked, add ground mango puree and nuts powder. Mix well.
For babies above one year, use cows milk & boil it further for 2-3 minutes and remove from flame.