酸奶油皇家糖霜开心果复活节鸟巢蛋糕

Preheat oven to 190 C/ 375 F and lightly grease a ring cake pan

Set aside

In a medium bowl--and using an electric mixer-- beat sugar, eggs, and butter until creamy

Add sour cream and flour and mix for a couple of minutes

Pour mixture into cake pan

Bake for 20 minutes or until golden brown and cooked through when tested with a skewer

To make the icing, use a standard mixer to beat the egg white until soft stiff peaks are formed

Add lemon juice and sugar and food coloring

Beat for a couple of seconds more

Let the cake cool on a wire rack for about 10 minutes

Then pour the royal icing/glaze onto the cake, sprinkle with chopped pistachios, and decorate as desired