Cake rusk at home recipe

Pakistani Cake rusk recipe:
Cake rusks are biscuits made from strips of baked cake and are baked again. They are very popular in Pakistan and we have them with Tea. Below is the recipe that you can try at home and enjoy.

Ingredients
Butter 4 oz (at room temperature)
Caster sugar 100 grams (4 oz or half cup)
Eggs 3
All purpose flour (Maida) 100 grams (4 oz or half cup)
baking powder 1 tsp
vanilla essence 1/2 tsp
yellow food color few drops in case of liquid or a pinch if its in powder form
Cooking Directions:
Beat the butter with a beater and add caster sugar and keep beating.
Add eggs one by one and keep beating until you add all the eggs.
Add and mix baking powder in flour.
Add vanilla essence and flour in the above mixture spoon by spoon and beat at a slow speed
Add food color at the end and fold it.
Grease cake rusk pan and sprinkle flour.
Pour the mixture in the pan.
Place this pan in a preheated oven for 20-25 minutes at 180c or number 4.
When cake is ready cut it from the center and than make small pieces.
Place them again in an oven for half hour.
Invert side of cake rusk after 15 minutes and bake again for 15 minutes.
Take out of oven and serve.