Preheat the oven to 350F. Grease 9 inch baking pan with butter then add a cut out parchment paper inside the baking pan. Using a tea pot boil some water then pour it into different baking pan and place it on the lowest oven rack. This Gluten Free Chocolate Cake requires moist air in the oven while it's baking.
Using big microwave-safe bowl place chopped chocolate and sliced butter and microwave it for 30 seconds. Take the bowl out stir chocolate with a spoon then place it back in the microwave and microwave it for another 30 seconds. Repeat this step until the chocolate is nicely melted thru.
Using a big spoon or spatula fold 1/3 of egg mixture into the chocolate until you will see few streaks of egg mixture be careful not to over mix. Repeat this step until all of the egg mixture is fold with chocolate mixture.
Pour batter into the baking pan. Place it on the medium oven rack and bake it for 30-40 minutes or until toothpick comes out clean. Let it cool then remove parchment paper from the bottom and place your chocolate cake on a plate garnish with berries and powdered sugar. Cut a slice and enjoy!