Peanut Butter Cup Stuffed Blondies with Peanut Butter Frosting & Chocolate Ganache

Peanut Butter Blondies are the ultimate peanut butter lover’s treat! These fudgy blondies are stuffed with peanut butter cups, topped with a luxurious peanut butter frosting, and finished with a silky chocolate ganache. They taste like a giant, fancy peanut butter cup in bar form!


For the Blondies

1 cup salted butter, melted
2 cups + 3 tbsp dark brown sugar, packed
2 tsp vanilla extract
3 large eggs, at room temperature
1 large egg yolk, at room temperature
2 and 1/3 cups all-purpose flour, spooned & leveled or weighed out
1/8 tsp salt
1 and 1/4 tsp baking powder
22 large peanut butter cups, divided See Note below!!
Peanut Butter Frosting

1/4 cup salted butter, softened at room temperature
1 cup creamy peanut butter 280 grams
1 cup powdered sugar (plus 1-2 tbsp, to taste)
1/4 cup heavy cream
1 tsp vanilla extract
pinch of salt
Chocolate Ganache

8 ounces semi-sweet chocolate, finely chopped Use good-quality baking bars here, like Ghirardelli, Baker’s, Lindt, etc.
1 cup heavy cream
For Topping
handful of chopped peanuts
a few extra peanut butter cups, chopped
sprinkle of flaky sea salt

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