"America;s Test Kitchen..."
INGREDIENTS
•
3 cups all-purpose flour
•
1 teaspoon salt
•
1 teaspoon baking powder
•
1/2 teaspoon baking soda
•
3/4 cup buttermilk, room temperature
•
1 tablespoon vanilla extract
•
1 1/8 cups unsalted butter, cut into chunks and softened
•
2 cups sugar
•
3/4 cup crunchy peanut butter
•
3 large eggs, room temperature
•
1 large egg yolk, room temperature
•
4 ounces bittersweet chocolate, melted
•
1/3 cup heavy cream, hot
•
2 tablespoons light corn syrup
•
1/4 teaspoon vanilla extract
•
salt, a pinch