Melt butter in 8 or 9-inch square pan.
Remove from heat.
Add remaining ingredients.
Beat with fork until mixture is smooth and creamy, about 1 minute.
Bake at 350Â° for 30 to 35 minutes.
Serve warm, cut in squares, with ice cream or whipped cream.
For Date Bar Cookies: Cut into small bars and roll in confectioners' sugar before serving.