Jam-Filled Thumbprint Cookies Recipe - (4.5/5)

Ingredients

• 1/2 cup butter
• 1/2 cup firmly light brown sugar, packed
• 1/2 teaspoon vanilla extract
• 1/4 teaspoon grated lemon zest
• 1 cup all-purpose flour
• 1/4 teaspoon salt
• 1/4 to 1/3 cup finely ground almonds, walnuts or hazelnuts
• 1/2 to 3/4 cup jam