In a large saucepan over medium heat, add the butter and as it begins to melt, add the buttermilk, sugar, corn syrup and maple.
1/2 Cup Unsalted Butter, 1 Cup Sugar, 3/4 Cup Buttermilk, 3 Tablespoons Corn Syrup, 1 Tablespoon Maple Extract
Whisk to combine then allow to come to a boil and cook, boiling for 1 minute.
Remove from heat and whisk in the baking soda.
1/2 teaspoon Baking Soda
Place back on the burner and cook for 1 minute, never leaving the stove as it will boil up all foamy and huge. If needed, remove from heat until it stops foaming.
Serve immediately.
Notes
A large pot is necessary so it doesn't boil overstore in an airtight container in the refrigerator for up to 2 weeks