Put the cereal and nuts in a large bowl.

Microwave the butter and brown sugar together until melted

Pour butter/sugar mix over the cereal and mix well.

Press half of the cereal mix into the bottom of an ungreased 9 x 13 dish. Use the bottom of a measuring cup to press down firmly.

Soften the ice cream enough to spread evenly over the cereal. Do this carefully so you don't upset the cereal layer.

Pres rest of cereal on top and press down.

Freeze a few hours or overnight.

Cut into bars! Mmmm!