Peel the mangoes, slice in half and then slice the cut halves lengthwise into thin strips. Set aside.

In a bowl, add heavy whipping cream,  condensed milk and using an electric mixer, beat until light and fluffy. Add vanilla extract and mix until well combined.

In a rectangular container,  place graham cracker on a preferable size of the container that it will fit the whole area, cut some to fit in the container. Then sprinkle with crushed graham cracker to fill in the gaps.

Pour around ¼ batter mixture or more and cover the whole graham cracker top. Then put on mango strips 14-20 mango stips on either position.

Sprinkle crushed graham on top and repeat

On the top portion, add the last remaining batter mixture and mango strips. Sprinkle it with little crushed graham. 

Chill for 2 hours before serving.