Steam sweet potatoes until soft, around 25 minutes

Add steamed sweet potatoes, milk, mascarpone, sugar, salt, and vanilla extract to a blender. Blend til smooth

In a mixing bowl, whisk heavy whipping cream until stiff peaks form

Pour blended mixture into the mixing bowl and mix well

Dip lady fingers into diluted espresso very quickly, and line the bottom of a container

Layer lady fingers and cream, and garnish with grated milk chocolate

Chill in the fridge for at least 5 hours or overnight before consuming