London Fog Earl Grey Tea Cake

Name: London Fog Earl Grey Tea Cake
Cuisine: European, British
Ingredients: Oil cooking spray; 250g/8.83ozs butter, softened; 250g/8.83ozs. caster or superfine sugar; 1 teaspoon vanilla; 5 eggs, at room temperature (or 3 duck eggs); 250g/8.83ozs. self raising flour; 1 teaspoon baking powder; Tea leaves from 1 Earl Grey tea bag or 1 teaspoon loose leaf Earl Grey tea, crushed until fine; 1/4 cup milk; 1 cup water; 1 Earl Grey tea bag; 1 cup caster or superfine sugar; 1/2 teaspoon vanilla; 450ml/16 flozs. cream; 3 teaspoons vanillin sugar; Edible flowers