Here’s a great homemade recipe for Peanut Butter Oreo Brownies (similar to what you’d find at a bakery like Better Tartz Bakeshop) — rich, fudgy chocolate brownies with layers of Oreos and creamy peanut butter swirl. (Bunsen Burner Bakery)
🍫 Peanut Butter Oreo Brownies — Bakery‑Style Recipe
🧺 Makes about 16 brownies
Ingredients
Brownie Base
- 3/4 cup (170 g) unsalted butter
- 1½ cups (270 g) granulated sugar
- 3 large eggs
- 3/4 cup (63 g) Dutch‑process cocoa powder
- 1/2 teaspoon salt
- 2 teaspoons vanilla extract
- 1 cup (120 g) all‑purpose flour
Add‑Ins
- 24 Oreo cookies (regular or peanut butter‑flavored)
- 3/4 cup (202 g) creamy peanut butter
- 1/8 cup (20 g) chocolate chips (optional)
- 1/8 cup (20 g) peanut butter chips (optional) (Bunsen Burner Bakery)
Instructions
- Prep oven & pan:
Preheat to 350 °F (175 °C). Line a 9″ square baking pan with parchment paper or foil, leaving an overhang to lift brownies out later. (Bunsen Burner Bakery) - Make brownie batter:
In a microwave‑safe bowl, combine the butter and sugar. Microwave in 30‑second bursts, stirring between, until melted and glossy. Let cool ~5 minutes. (Bunsen Burner Bakery)
Whisk in eggs one at a time, then add cocoa powder, salt, and vanilla. Stir until smooth. Gently fold in flour until there are no dry streaks. (Bunsen Burner Bakery) - Layer it up:
Spread half the brownie batter in the prepared pan. Place 16 Oreos in a layer over it. Warm the peanut butter slightly so it pours easily, then drizzle over the Oreos. Take the remaining batter and spread (or swirl) it over the peanut butter layer — you can leave some peanut butter peeking through. Top with remaining chopped Oreos, chocolate chips, and peanut butter chips if using. (Bunsen Burner Bakery) - Bake:
Bake 30–35 minutes, until a toothpick inserted near the center comes out with a few moist crumbs (not wet batter). Let cool completely before cutting — chilling helps make clean slices. (Bunsen Burner Bakery)
🧠 Tips for Best Results
- Don’t overbake — for fudgy brownies, remove when a few moist crumbs cling to the toothpick. (Bunsen Burner Bakery)
- If you want more peanut butter flavor, swirl extra peanut butter on top after baking or add peanut butter chips. (Bunsen Burner Bakery)
- Let the brownies cool fully (or chill) for neat squares. (Bunsen Burner Bakery)
Would you like this scaled to smaller or larger pan sizes (like 8×8, 9×13) with adjusted bake times? 🍰