Ingredient:

• 1 teaspoon plus 2 tablespoons butter, divided
• 1-2/3 cups sugar
• 2/3 cup evaporated milk
• 1/2 teaspoon salt
• 2 cups miniature marshmallows
• 1 package (10 to 11 ounces) butterscotch chips
• 1/2 cup chopped walnuts, toasted
• 1 teaspoon maple flavoring