Heat oven to 350 degrees

Place butter in a 13x9x2 inch baking pan.

Place pan hot oven and allow the butter to melt. Careful not to burn the butter, so watch carefully.

Sprinkle graham cracker crumbs over the top of melted butter.

Use the bottom of a cup and pack the crumbs, tightly.

Layer one cup of the peanut butter chips on top of the graham cracker crumbs.

Sprinkle coconut on top of the chips.

Sprinkle the remaining 2/3 cup of peanut butter chips on top.

Pour the can of sweetened condensed milk over the top of the bars.

Gently press down.

Bake for 20 minutes or until lightly browned.

Place the 1/2 cup of chocolate and shortening in a microwave safe bowl.

Microwave on high for 25 seconds. Stir.

Microwave again for 25 second intervals, stirring in between, until chocolate is melted and smooth.

Once bars are finished baking, allow to cool about 5 minutes and then drizzle chocolate over the tops.

Allow to cool completely on wired racks.

Cut into bars and store in an air tight container.