Grandma Brubaker’s Orange Cookies | Reader's Digest Canada

Ingredients

• 1 cup shortening
• 2 cups sugar
• 2 large eggs (separated, room temperature)
• 1 cup buttermilk
• 5 cups all-purpose flour
• 2 tsp baking powder
• 2 tsp baking soda
• Pinch salt
• 2 medium naval oranges (juice and grated zest)
• 2 cups confectioner's sugar
• 1/4 cup orange juice
• 1 tbsp butter
• 1 tbsp grated orange zest