1Whisk together flour, baking powder, baking soda,and salt in medium-size bowl.
Beat together butter and sugar on medium speed in large bowl until light and fluffy, about 3 mins. ; Beat in eggs, vanilla,and ricotta cheese until well blended.
2Stir in flour mixture until well blended. cover and refrigerate overnight.
Heat oven to 350 degrees F , lightly grease baking sheets.
3Shape dough by level tablespoons into balls. Place at least 1 inch apart on prepared baking sheets.
4Bake in 350 degree F oven for 10 minutes or until bottoms are lightly brown. Do not overbake. Transfer cookies with metal spatula to wire rack to cool slightly.
5Meanwhile,prepare glaze; Stir together confectioners' sugar and orange juice in small bowl until smooth and good glazing consistency. If too thick. add additional orange juice, drop by drop, until desired consistency . Drizzle glaze evenly over each cookie. Garnish with sprinkles if desired. Let stand until hardened. Makes 6-1/2 doz. cookies.