Hamantaschen Cookie Dough

0.50 cup butter
1.00 cup sugar
2.00 teaspoons baking powder
1.00 egg
Vanilla or lemon extract
2.00 tablespoons milk
2.00 cups flour
0.50 teaspoon salt (or more)
Cream butter, sugar and add egg. Mix and sift flour and baking powder and salt and add some of mixture to creamed butter and sugar mixture. Add the milk and rest of flour. Add flavoring. Roll dough out, cut into rounds and place spoonful of filling on each round. Form into triangles and bake at 375 degrees f for 15 to 30 minutes depending on size.