- 1 box yellow cake mix
- 8 ounces sour cream
- 2/3 cup oil
- 4 eggs
- 2½ cups granulated sugar
- 3 cups water
- 1 pound fine shredded coconut
- 1 teaspoon vanilla
- 10–15 large marshmallows
Mix cake ingredients and bake according to directions on box.
For icing, mix sugar, water, coconut and vanilla and bring to a boil. Turn heat down to medium and boil for 20 minutes. Take off burner and add marshmallows; stir until melted.
Cool slightly and spoon on each layer while cake is still warm.