ACTIVE: 25 min
TOTAL: 55 min
SERVES: 8 to 10
•1 stick unsalted butter, at room temperature, plus more for the pan
•All-purpose flour, for the pan
•1 18.25-ounce box white cake mix, plus required ingredients
•1 cup creamy peanut butter
•1-1/2 to 2 cups cups confectioners' sugar
•2 to 3 TB milk
3/4 cup grape jelly
•A 9-inch square cake pan
(Source: Food Network Magazine & photo also)