Combine eggs, milk, sugar and vanilla. Beat until well combined but not foamy. Stir in rice and dried cranberries.
Pour into a 2-quart baking dish. Sprinkle with cinnamon.
Place the 2-quart baking dish into a 9 x 13 baking dish and place in oven. Pour boiling water into the 9 x 13 baking dish (around the 2-quart baking dish) to a depth of one inch.
Bake for 30 minutes. Stir.
Bake for an additional 15 to 25 minutes or until a knife inserted near the center comes out clean.