Here is a goal: how to make sea salt caramels

Which way makes more sense to accomplish this goal?
Line an 8-inch-square pan with foil and brush with oil. Melt 2 sticks butter in a saucepan, then add 2 cups sugar, 1 1/4 cups light corn syrup, a 14-ounce can sweetened condensed milk and 1/4 cup cocoa powder. Bring to a boil and cook, stirring occasionally, until a candy thermometer reaches 248 degrees F, about 15 minutes. Pour into the prepared pan and cool. Cut into squares. Sprinkle with sea salt while warm.