Preheat oven to 425 degrees.
Melt 1 tablespoon of butter in the microwave. Arrange ears of corn on a baking sheet. Brush each ear of corn with the melted butter. Cook in preheated oven for 20 minutes. Flip corn, and cook for an additional 20 minutes. Once corn has cooled, use a knife and cut/shave kernels from ears. Place in bowl and set aside until ready to use.
Warm chicken broth on stove, and cover with lid to keep warm until use. I typically do this about 10 minutes before I start to prepare the risotto.
In a large skillet or dutch oven, heat 4 tablespoons of butter over medium heat. Add shallots and cook for 3 minutes. Add garlic, and stir for 2 minutes to prevent garlic from burning.
Add white wine, Simmer for for 2-3 minutes or until most of the liquid has reduced. While simmering, scrape the bottom and sides of pan to removed any drippings.
Stir in risotto rice and stir until almost translucent. Add two ladles or 1/2 cup of warm chicken stock. Simmer and stir until most of the stock is absorbed. Add another two ladles or 1/2 cup, and stir until most of the stock is absorbed. Keep repeating this process by adding stock and stirring until risotto is tender, but firm and not mushy. This process typically takes between 20 - 25 minutes.
Right before adding last ladle of stock, stir in corn, crab meat, parmesan cheese, heavy cream and 1 tablespoon of butter. Taste risotto and add salt and pepper if needed. Garnish with optional fresh parsley.
Serve immediately.