1 cup butter, softened
1 cup brown sugar
1 cup white sugar
1 cup white sugar
1 egg
1 teaspoon vanilla extract
1 cup peanut butter
3/4 cup packed light brown sugar
1/2 teaspoon vanilla extract
1 cup all-purpose flour
1/2 teaspoon vanilla extract
2 tablespoons peanut butter
1/2 teaspoon vanilla extract
Preheat oven to 350 degrees F (175 degrees C). Grease and flour a 9x13 inch pan.
In a large saucepan, combine butter and brown sugar. Bring to a boil over medium heat and cook until thickened, about 15 minutes. Remove from heat and stir in sugar, eggs, vanilla extract, peanut butter, brown sugar, flour, and vanilla extract. Mix well. Pour into prepared pan.
Bake in preheated oven for 45 minutes or until toothpick inserted into center of pan comes out clean. Cool and cut into squares.