Orange Cookies - cooking recipe

Ingredients

2 c. sugar
1 c. yogurt (plain)
2 sticks butter
1 egg (egg white for dough, egg yolk for top of cookies)
2 tsp. baking powder
1 c. orange juice
adequate amount flour

Preparation

Mix sugar and butter until it becomes creamy.
Add yogurt, egg white and baking powder and mix.
Put flour and orange juice in and make dough.
Make small balls and pour egg yolk on them.
Bake at 350\u00b0 until they become golden brown.