Heat oven to 250°F. Line 2 cookie sheets with wax paper. In 13 x 9-inch baking pan, combine oatmeal cereal squares and peanuts. In small saucepan, melt butter over medium heat. Stir in brown sugar, corn syrup, molasses and salt. Bring to a boil. Stir well. Boil 2 minutes without stirring. Remove from heat. Add vanilla and baking soda; mix well. Immediately pour over cereal mixture; stir with wooden spoon to evenly coat all pieces with syrup mixture. Bake 1 hour, stirring every 20 minutes. Transfer to prepared cookie sheets, spreading mixture into even layer. Cool completely. Break into bite-size pieces. Store tightly covered at room temperature. Makes 10 cups (about 20 1/2 cup servings).