Inspired from Kalyani's recipe at Sizzling Tastebuds..
2 1/2 cups all purpose flour
1/4 cup coarsely powdered oats
1 1/2 cup sugar (powdered)
1/2 tsp baking soda
Salt 2 pinches
10 tbsp cooking oil
1 cup water
1 tsp vanilla essence
Sieve the flour with salt and baking soda 2-3 times. Add the sugar and oats to it and keep aside. Beat cooking oil, water and essence for a few minutes and add the flour mix to it. Gently get everything together and pour in a greased pan. Preheat oven to 180 degrees and bake for 30-40 minutes checking if the cake is done by getting a clean toothpick back when inserted in the cake.
Cool well and garnish as desired. I cut the cake into two and make a orange flavoured butter cream with orange essence, butter and icing sugar. Spread the cream over one part and cover it with the other part. Spread some more butter cream over it and in the sides. Add a bit of red orange colour to the remaining butter cream mixture and garnish the cake as desired.
Although this cake wouldnt be fluffy and the texture wouldnt be like the normal cake because of the addition of oats, it definetely is a good option to try for kids evening snacks.