Into a mixing bowl, add Crunchy Peanut Butter (2 cup) and Butter (1/2 cup). Melt in the Panasonic Microwave Oven for 1 minute.
Add Powdered Confectioners Sugar (2 cup) and Brown Sugar (1/2 cup). Mix well.
Add Vanilla Extract (1 teaspoon) and mix well.
Transfer batter to a greased 13x9-inch casserole dish. Use your fingers to even the surface.
Into a microwave-safe bowl, add Chocolate Chips (2 cup). Heat in the Panasonic Microwave Oven in 30-second intervals, stirring in between until melted.
Pour the chocolate on top of the peanut butter batter. Spread evenly.
Cover and place in refrigerator for 2-3 hours to set.
Slice and enjoy! Store in an airtight container. Cooking results may vary depending on microwave oven used.