Mixed Berry Bread Pudding

I love bread pudding.  I try to pass it off as baked french toast and make it a valid breakfast food.  I love to throw whatever seasonal bounty I have into it.  I especially love it in the spring, with berries and a lovely cup of tea...or cafe latte.  Here's my favorite spring bread pudding in all of it's berry-bursting, custardlicious glory:

Mixed Berry Bread Pudding

3-4 slices bread or 2 hamburger/hot dog buns (I used 2 bakery hot dog buns)
1 tablespoon butter
2 eggs
1 cup milk
1/4 cup brown sugar
1/4 cup sugar
1/2 teaspoon vanilla
3/4 cup mixed berries (I used an equal mix of blueberries and blackberries in this one)

1 - Grease 8x8 pan and preheat oven to 375
2 - Break bread/buns into bite sized pieces and throw in the 8x8 pan
3 - Pour mixed berries over the bread
4 - Melt butter with milk in the microwave in 1 minute intervals until the butter is melted
5 - Whisk brown sugar, white sugar and vanilla into the butter-milk mixture
6 - Whisking constantly, add eggs one at a time to milk mixture; whip constantly to incorporate the eggs without cooking them
7 - Pour batter over bread/berries, and lightly push down with a fork until bread is covered
8 - Bake in the preheated oven for 30 minutes, or until the top springs back when lightly tapped

Try to resist the urge to scoop some out immediately - this gets even better after cooling awhile :)