Rocky Road Clusters

2 cups (12-oz. pkg.)semi-sweet chocolate chips

1 can (14oz.) sweetened condensed milk

2 1/2 cups miniature marshmallows

1 cup coarsely chopped nuts

1 teaspoon vanilla extract

Line a baking sheets with wax paper. Combine morsels and sweetened condensed milk in large, uncovered, microwave-safe bowl on high (100%) power for 1 minute; stir. The morsels may retain some of their original shape. If necessary, microwave at additional 10 to 15-second intervals, stirring just until morsels are melted. Stir in marshmallows, nuts and vanilla extract. Drop by heaping tablespoon in mounds onto prepared baking sheets. Refrigerate until firm.