Blueberry-Rosemary Thumbprint Cookies - Blueberries

Ingredients

• 1 pint blueberries
• 1/2 cup sugar
• 1 teaspoon lemon juice
• 2 sprigs of rosemary
• 1 cup unsalted butter, softened
• 1/3 cup sugar
• 1/3 cup brown sugar
• 1 egg yolk
• 1/2 teaspoon vanilla extract
• 1/2 teaspoon almond extract
• 2 1/4 cups all-purpose flour
• 2 teaspoons cornstarch
• 1/2 teaspoon salt
• 1/2 cup chopped pecans or pistachios