Blueberry Oat Slices from Back to Baking by Anna Olson

Ingredients

• 1 cup (250 mL) dried blueberries
• 1 cup (250 mL) unsalted butter, at room temperature
• ½ cup (125 mL) icing sugar, sifted
• ½ cup (125 mL) sugar
• 1 egg, at room temperature
• 2 tsp (10 mL) vanilla extract
• 2¼ cups (560 mL) all-purpose flour
• ⅔ cup (160 mL) regular rolled oats
• ¼ tsp (1 mL) salt
• ½ tsp (2 mL) baking powder