Muffin Bread Pudding

So I made some really awful muffins yesterday. I don't know what went wrong, but I suspect my baking powder is the culprit. So what now? Throw away the muffins? I just can't waste them! So I made bread pudding with them. Nice and sweet, and so much better than the muffins were!

8 medium muffins (I used raspberry muffins), cut into 1 inch cubes
1 egg
1 1/2 cups vanilla soymilk
1 teaspoon vanilla extract
1/4 cup of sugar
2 table spoons of brown sugar

Preheat oven to 350. In a bowl, mix the milk, extract, 1/4 cup of sugar and egg. Blend in the muffin cubes. Let it sit for about 20 minutes or so. Sprinkle brown sugar over top. Bake for 45 minutes, or until custard is firm. Knife should come out clean.