In the bowl of your electric mixer, beat butter and sugar until light and fluffy. Add egg and extracts.
1 cup butter, 1 and ½ cups granulated sugar, 1 large egg, 1 teaspoon pure vanilla extract, 1 teaspoon lemon extract
Combine flour, baking powder, and salt. Turn the mixer to low and slowly add one cup at a time to the butter mixture. Stir in the blueberries and zest from one lemon.
2 and ¾ cups all-purpose flour, 1 teaspoon baking powder, 1 teaspoon salt, 2 cups dried blueberries, 1 medium lemon
You do not have to chill this dough.
Using a spring-release scoop, scoop dough onto the prepared pan. Dip the bottom of a flat glass in granulated sugar, then flatten the dough to 1/4-inch thickness.
Bake for 15 minutes or until desired doneness. These cookies do not brown much, so watch the first batch closely and note the time. Also, I used a 1/4-cup spring-release scoop. Take note if you used a different size scoop.