Goo Goo Clusters

1 large bag miniature marshmallows
1 bag chocolate chips
2 cups dry roasted peanuts
1 can Eagle Brand sweetened condensed milk
2 teaspoons butter

Melt chocolate chips in pan with sweetened condensed milk. While this is heating, mix marshmallows and peanuts in a large bowl. Pour melted mixture over nuts and marshmallows. Mix together. Pour into buttered pan. Chill for 2 hours, then cut.