1 1/3 cups of all-purpose flour (170g)
1 tsp baking powder
1/2 tsp salt
1 cup butter (225g)
1 cup Fry's cocoa (128g)
2 cups sugar (400g)
4 eggs
1 1/2 tsp vanilla
1 cup chopped nuts (optional)

Stir together flour, baking powder and salt in a small bowl.

Melt butter in large saucepan. Remove from heat.

Stir in cocoa.

Blend in sugar, eggs and vanilla.

Blend in dry ingredients and optional nuts.

Pour batter into greased 13" x 9" x 2"(3.5 L) rectangular baking pan.

Bake in preheated 350°F (180°C) oven 30 to 35 minutes or until done.

Cool.