This one‑bowl peanut butter chocolate cake is unbelievably simple yet deeply indulgent. With chocolate cake mix, creamy peanut butter, melted butter, milk, and chocolate chips, it comes together quickly and delivers big flavor—perfect for family nights, potlucks, or those spontaneous dessert cravings.
Preheat the oven to 350°F and lightly grease a 9×13‑inch baking dish.
Scoop the peanut butter into the greased dish and spread into a smooth, even layer.
In a large mixing bowl, combine the chocolate cake mix, melted butter, and milk. Whisk until thick and glossy; a few small lumps are fine.
Pour the batter over the peanut butter layer and smooth to the corners. Then sprinkle the mini peanut butter cups and chocolate chips evenly on top.
Bake for 35–40 minutes, or until the edges pull away slightly and a toothpick inserted near the center comes out with moist crumbs.
Allow the cake to rest for about 15 minutes before slicing and serving warm (or at room temperature for firmer texture).
Notes
Let your peanut butter sit out at room temperature for 30 minutes before using for easier spreading. For extra indulgence, serve warm with vanilla ice cream or a drizzle of caramel.
Keyword Chocolate Cake, One Bowl, Peanut Butter, Quick Dessert