Giant Double Blueberry Muffin Cookies

Bahan-bahan (16 porsi)

• 2 sticks (1 cup) salted butter
• 2/3 cup brown sugar
• 1/3 cup granulated sugar
• 2 large eggs
• 1 tablespoon vanilla extract
• 2 1/4 cups all-purpose flour
• 1 teaspoon baking soda
• 1/2 teaspoon kosher salt
• 2 tablespoons blueberry jam
• 3/4 cup fresh blueberries
• 1/3 cup all-purpose flour
• 1/4 cup packed brown sugar
• 1/2 teaspoon cinnamon
• 3 tablespoons cold butter, cubed or grated