Butter your 8x8 pan and set aside

Cube the French loaf and set aside

In a large bowl combine eggs, milk, mascarpone, vanilla and the brown sugar

Mix with an electric mixer or immersion blender.

Add cubed bread and top with blueberries

Stir to combine and once thoroughly mixed place in your buttered pan

Refrigerate overnight or until all the custard mixture has been absorbed by the bread.

The next day place pan in a cold oven and bring oven temperature to 350.

Bake at 350 for 40-45 minutes

Allow to cool for 10 minutes and then mix together the powdered sugar, the juice of the lemon and a splash of milk, stir to combine and top the warm casserole with the glaze.

Enjoy!