INGREDIENTS
•
2 1/2 cups all-purpose flour
•
1/3 cup sugar
•
1 1/2 tsp. cream of tartar
•
3/4 tsp. baking soda
•
1/4 tsp. salt
•
3/4 cup (1 1/2 sticks) chilled unsalted butter, cut into small pieces
•
2 tsp. grated orange peel
•
1 large egg
•
5 Tbsp. orange juice (divided)
•
2 Tbsp. milk or cream (optional)
•
2 cups confectioners sugar