Step 1

Preheat oven to 350 degrees.

Step 2

Brush a bundt pan generously with vegetable oil.

Step 3

In a stand mixer (affiliate link) combine cake mix, water, 1/2 cup peanut butter and eggs on medium speed until uniform.

Step 4

Stir in 1 cup chocolate chips.

Step 5

Pour batter into prepared pan and bake for 50-55 minutes or until toothpick inserted in middle comes out clean.

Step 6

Cool 15 minutes in pan.

Step 7

Loosen cake from side of pan if necessary and invert onto cooling rack.

Step 8

Cool an additional 30 minutes.

Step 9

To make the glaze combine 3 tablespoons peanut butter with milk until smooth.

Step 10

Add powdered sugar and mix.

Step 11

If glaze is too thick add up to an additional tablespoon of milk.

Step 12

Drizzle glaze over cake and sprinkle with remaining chocolate and peanut butter chips.