An easy cinnamon king cake recipe is super easy Mardi Gras king cake from AllRecipes.com. To make this cake, you need refrigerated ready-made sweet roll dough, canned vanilla frosting, milk, sprinkles and food coloring.
Remove the dough from 3 14-ounce can of refrigerated sweet rolls, and form each one into a thick log, or divide each one into three strands, and braid the strands together. Pinch the ends together to connect the logs or braids from the three cans to form a large ring. Place the cake on a baking sheet, and bake it covered with foil at 350 degrees Fahrenheit for 50 to 60 minutes. Once the cake is golden brown, cool it on a wire rack. Place the traditional plastic baby in the cake through a slit.
Divide 2 cans of vanilla frosting into bowls, and color them with green, yellow and purple food coloring. Drizzle the frosting over the cake, and sprinkle everything with multi-colored sprinkles.
To make the pastry dough from scratch, combine 1 cup of scalded milk and 1/4 cup of butter in one bowl and 2 packages of active dry yeast, 2/3 cup of warm water and 1 tablespoon of sugar in another. After 10 minutes, pour the cooled milk mixture into the yeast mixture, and add 2 eggs, 1/2 cup minus 1 tablespoon of white sugar, 1 1/2 teaspoons of salt and 1/2 teaspoon of nutmeg. Beat in 5 1/2 cup of flour, and allow the dough to rise for two hours before baking it.