1Let cookie dough stand at room temperature 10 minutes to soften. Heat oven to 350 degrees. Line 2 cookie sheets with cooking parchment paper.
TOPPING: In small bowl mix 1/4 cup of the flour, sugar, and butter with fork until crumbly; set aside to use for topping.
In another small bowl, mix remaining 1 cup flour, baking powder and baking soda; set aside.
In medium bowl, beat dough and cream cheese with electric mixer on medium speed until blended.
On low speed beat in egg, milk, lemon peel and lemon juice until well blended. Stir in flour mixture until combined (do not over mix; mixture will be a thick batter.) Carefully fold in blueberries.