In a large mixing bowl, combine the sugar, vegetable oil, milk,eggs, salt and vanilla extract.
Next mix in the yogurt and beat until well combined.
Sift together, the whole wheat flour the baking powder and the baking soda.
sift twice for better airiness
Add the dry ingredients to the wet and fold gently
Sprinkle the funfetti and fold gently
Pour the batter in a 9-inch by 13-inch pan and bake at 350°F for 28-32 minutes
Test the cake if done by inserting a toothpick into the center of the cake. If it comes out clean, the cake is done.
Remove from the oven and allow to cool completely.
To frost
Meanwhike whip the double cream with icing sugar till they are soft and form gentle peaks
Place the cake on a turn table and dollop.The whipped mixture liberally at the center. Spread outwards in circular pattern.Cover up the sides and sprinkle with the funfetti.
Decorate with more that you like.
Enjoy your cake.