Jam-Filled Thumbprint Cookies - Circulon Cookware

Ingredients

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