These delicate, thin, crispy Lemon Oatmeal Sugar Cookies are bursting with fresh citrus flavor. Sugar cookies are always a favorite and the addition of lemon raises them to a higher (and tastier) level. The oatmeal is an unusual twist but it really works.
In a bowl, sift together flour, baking powder, and salt.
In a separate bowl, use an electric mixer to beat butter and sugar. Add eggs and beat well. Beat in lemon zest and juice. Gradually add flour mixture, then stir in oats. Chill dough for at least 2 hours.
Preheat oven to 375 °F. Grease baking sheets or line with parchment.
Drop dough by rounded tablespoons onto a prepared baking sheets, allowing room for cookies to spread. Using a flat-bottomed glass or custard cup that has been greased and dipped into sugar, flatten each ball to a 1/4-inch thickness (dip the glass into sugar each time). Bake for 8 to 10 minutes, or until lightly browned around the edges.
