"Make a batch of these flourless peanut butter cookies in less than 15 minutes! They are soft and absolutely delicious plain, with a dollop of jam or a drizzle of chocolate on top. We prefer these with a blend of granulated and brown sugar, but you can use just one type of sugar. (We use 1/2 cup brown sugar and 1/4 cup white) **If making the jam-filled cookies, it is best to add the jam the day of serving. If left overnight, the cookies will soften too much from the extra moisture. Store plain cookies and chocolate drizzled cookies in an airtight container up to 2 days or freeze wrapped individually up to 3 months...."