Step 1
In a large bowl, whisk together eggs, milk, sugar, lemon zest and vanilla. Stir in bread to coat well. Cover and refrigerate for at least 1 hour or up to 8 hours.
Step 2
Preheat oven to 375°F (190°C).
Step 3
Lightly butter eight 1 cup (250 mL) oven proof ramekins and place on baking sheet; set aside. Stir blueberries into bread mixture and divide evenly into prepared ramekins.
Step 4
Bake ramekins for about 40 minutes or until golden, puffed and knife inserted in centre comes out clean. Let cool slightly. (They will deflate slightly as they cool.)
Step 5
Lemon Mascarpone:
Meanwhile, in a bowl, beat together mascarpone, cream and icing sugar with lemon zest and juice until combined.
Add a generous dollop to top of each ramekin when ready to serve.