10 tablespoon (1 1/4 sticks) unsalted butter, melted and cooled, plus more for pan
3 cups all-purpose flour
1 teaspoon baking soda
1/2 teaspoon salt
1 cup sugar
1 cup packed light brown sugar
1/2 cup smooth natural peanut butter
1 teaspoon vanilla extract
2 large eggs
1/2 cup chocolate chips
1 cup Reese's Pieces
15 miniature peanut butter cups, cut in half
How to Make It
Preheat oven to 350°F. Butter bottom and sides of a 9-inch cake pan and line bottom with parchment. Butter parchment. In a medium bowl, whisk together flour, baking soda and salt.
In a large bowl, beat butter, both sugars and peanut butter with an electric mixer on medium-high speed until combined. Scrape down sides of bowl and beat in vanilla and eggs until smooth. Reduce mixer speed to low and add flour mixture, mixing just until a thick dough forms. Fold in chocolate chips, Reese's Pieces and peanut butter cups. Press dough into prepared pan.
Bake until brown on top but still soft in center, 40 to 45 minutes. Let cool in pan for 20 minutes. Run a sharp knife around edges of pan; transfer cake to a cooling rack. Let cool completely before cutting into wedges and serving.
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These are so good you literally cannot stop eating them. The devil must have made these possible, lol! Peanut butter, chocolate, blondie.. perfect combination. Found this in AllYou magazine about 2 (?) years ago, had to find it again for Halloween. I ran out of mini Reese's so I used chopped regular, but I feel the mini ones turned out better. My only qualm is that the center was never fully cooked even though I followed the instructions to a T, even pan size, and the edges were burning. Next time I will be putting foil on the edges. I brought the pan to work and one of my coworkers ended up eating 1/3 of the thing BY HERSELF! Delicious, so beware!