Makes 31/2 pounds.

1 cup (2 sticks) REAL butter
21/4 cups firmly packed brown sugar (1 pound)
1/2 cup light corn syrup
1 teaspoon vanilla extract
51/2 cups (6 ounces) Crispix cereal
51/2 cups (6 ounces) Rice Chex cereal
7 cups (6 ounces) Corn Chex
1 pound salted mixed nuts

Preheat oven to 250 degrees F.

Mix butter, brown sugar, corn syrup and vanilla extract in saucepan over medium-high heat. Bring to a boil for 5 minutes.

Mix cereals and nuts together in a roasting pan. Pour syrup over mixture. Mix well. Pour into large roasting pan. Bake 1 hour.

Spread on wax paper to cool. Break up pieces as needed. Store in an airtight container.