Vintage Recipe Website - Heat oven to 300°. Melt butter in 13x9x2″ pan over low heat. Remove from heat. Mix seasoning and salt. Stir into butter until completely blended. Return to low heat. Add CHEX. Stir until all are covered with butter. Heat and stir 5 minutes more. Put in oven for 10 minutes. Stir after 4 and 8 minutes. Spread out to cool. Store tightly covered.