The cake is not too sweet. If you’d like it sweeter, mix ½ cup white chocolate chips into the batter prior to pouring into the baking pan. Or increase both of the sugars to ⅔ cups each.
I used a glass baking dish for this recipe. If you use a metal pan the baking times will vary.
Don't overmix the cake! Over mixing will cause a not so moist and tough cake.