Dutch "Boterkoek" (Butter Cake) - cooking recipe

Ingredients

1/2 lb. butter, salted
1 1/2 c. brown sugar
1 egg, separated
1/2 tsp. baking powder
1/2 tsp. salt
2 c. white flour

Preparation

Cream butter and sugar. Add egg white, baking powder and salt. Add flour and mix well. Divide batter and spread into 2 pie plates. Spread egg yolk over top and decorate with cross hatching marks with the tine of a fork.