Peanut Brittle

1 stick butter (or margarine), unsalted
2 cups sugar
1/3 cup corn syrup
1/2 + 1/8 cup water
1/2 teaspoon baking soda
1 1/2 tablespoons kosher salt
3/4 lb. peanuts

- Cook first 4 ingredients until mixture reaches 300 degrees F. on candy thermometer.
- Quickly add baking soda and kosher salt. Mix thoroughly, then quickly add peanuts. Spread mixture onto a butter greased jellyroll pan and spread trying to fill most of pan.
- When the mixture cools, crack into bite-size pieces.