Orange Almond Cake

1 Medium size orange (240g)
1/2 tsp Baking Powder 
3 eggs
1/2 cup sugar
1 cup Almond Meal (Almond meal is finely ground almonds ; powdered to a flour like texture)
1/4 cup( 35 g) Plain flour
25 g slivered Almonds

1.Place unpeeled whole orange in medium sauce pan ,
cover with cold water;Bring to boil ,Boil for20 minuts, covered or until orange is tender ;drain.Cool.
2. Preheat oven to 180 C n Grease the pan.
3. cut orange into two halves,remove seeds n Blend orange including rind with baking powder until pulpy.
4. Beat eggs & sugar in bowl with electric beater about 5 min or until thick and creamy .Fold in Almond meal , flour and orange pulp.
5. Pour mixture into pan ,sprinkle with Almonds ;Bake about 1/2 hour to 45 min until top in golden.