Salted Dark Chocolate Dipped Peanut Butter Cookies

INGREDIENTS

1 cup

unsalted butter, softened

1 tsp

vanilla extract

1 cup

light brown sugar

1 cup

granulated sugar

eggs

1 cup

peanut butter

3 cups

all-purpose flour

2 tsp

baking powder

1/8 tsp

salt

1 12 ounce package

Ghirardelli dark melting wafers {or other dark chocolate for dipping}

about 1/3 c. coarsely chopped dry-roasted peanuts

fleur de sel or sea salt {optional}