Add the oats, flaxseed, cinnamon, nutmeg, maple syrup and milk to a large bowl and mix well. Divide into 4 equal pots/jars then set aside.
To make the ‘sticky toffee’ sauce, add the dates to a bowl and cover with warm water. Leave to soak for 10 minutes, until sticky, then drain.
Add the dates to a blender along with the milk, vanilla extract and salt. Blend until you have a smooth, caramel-like sauce.
Divide the sauce evenly between the 4 pots of oats, carefully spreading into an even layer. Place in the fridge to thicken overnight, or for at least 2 hours.
When ready to serve, top with the pecans and a pinch of sea salt.
