These Peanut Butter Stuffed Brownies are guaranteed to become one of your favorite desserts. Instead of simply swirling peanut butter into the batter, this recipe creates a thick, creamy peanut butter layer hidden right in the center. Every bite delivers rich fudgy brownie, silky peanut butter, and just the right touch of sweetness.
These brownies have a bakery-style appearance but are surprisingly easy to make at home. The simple trick of freezing the peanut butter layer before assembling the brownies keeps the filling perfectly defined after baking, giving you beautiful slices with a creamy center.
Why You’ll Love These Brownies
- Ultra fudgy chocolate texture.
- A thick peanut butter filling in every bite.
- Perfect balance of sweet and salty flavors.
- Easy to prepare with everyday baking ingredients.
- Great for parties, holidays, bake sales, and family gatherings.
Ingredients
For the Peanut Butter Layer
| Ingredient | Quantity |
|---|---|
| Creamy peanut butter (regular, not natural) | 1 cup |
| Flaky sea salt | 1 teaspoon, divided |
For the Brownie Batter
| Ingredient | Quantity |
|---|---|
| Unsalted butter | 200 g |
| Dark chocolate chips | 200 g |
| Light brown sugar | 1 cup |
| Large eggs | 3 |
| Vanilla extract | 1 teaspoon |
| All-purpose flour | ½ cup |
| Unsweetened cocoa powder | ¼ cup |
| Salt | â…› teaspoon |
Also Read: Chocolate Pudding Pots
How to Make Peanut Butter Stuffed Brownies
Step 1: Prepare the Peanut Butter Layer
Reserve about 2 tablespoons of peanut butter for decorating the top. Warm the remaining peanut butter for 20 to 30 seconds until spreadable. Line an 8-inch square baking pan with parchment paper and spread the peanut butter evenly into a flat layer. Sprinkle with half of the flaky sea salt. Freeze until completely firm, about 2 to 3 hours.
Step 2: Prepare the Brownie Batter
Preheat your oven to 350°F (175°C). Line the same baking pan with fresh parchment paper.
Melt the butter and dark chocolate together until smooth. Stir in the brown sugar until combined. Add the eggs one at a time, followed by the vanilla extract. Fold in the flour, cocoa powder, and salt until no dry streaks remain. Avoid overmixing.
Step 3: Assemble the Brownies
Spread half of the brownie batter into the prepared pan. Carefully place the frozen peanut butter slab on top. Cover it with the remaining brownie batter and gently smooth the surface.
Warm the reserved peanut butter slightly and drizzle it over the top. Use a butter knife or skewer to create decorative swirls.
Step 4: Bake
Bake for approximately 30 to 35 minutes. The edges should look set while the center remains slightly soft. Do not overbake, as the brownies continue to firm up while cooling.
Step 5: Cool Before Slicing
Allow the brownies to cool in the pan for about one hour. Refrigerate for at least three hours before cutting into squares. This helps the peanut butter filling set properly and gives clean slices.
Also Read: Almond Lace Tuiles
What You Can Do Better
- Use regular creamy peanut butter instead of natural peanut butter for a thicker filling.
- Freeze the peanut butter layer completely before assembling for the cleanest center.
- Do not overmix the brownie batter once the flour is added.
- Underbake slightly for the fudgiest texture.
- Chill completely before slicing to prevent the filling from becoming messy.
- Sprinkle flaky sea salt on top after baking for extra flavor contrast.
Serving Suggestions
- Enjoy at room temperature with a glass of cold milk.
- Serve warm with vanilla ice cream.
- Drizzle with melted chocolate for an extra decadent dessert.
- Add chopped roasted peanuts for extra crunch.
- Pair with hot coffee or espresso for an indulgent afternoon treat.
Also Read: Jalapeño Artichoke Dip
Storage Tips
- Store in an airtight container at room temperature for up to 3 days.
- Refrigerate for up to 1 week for a firmer texture.
- Freeze individual brownie squares for up to 3 months. Thaw overnight in the refrigerator before serving.
Also Read: Biscotti Recipe
Nutritional Information
Approximate values per brownie (based on 16 servings).
| Nutrient | Amount |
|---|---|
| Calories | 295 kcal |
| Carbohydrates | 24 g |
| Protein | 6 g |
| Fat | 21 g |
| Saturated Fat | 9 g |
| Cholesterol | 55 mg |
| Sodium | 170 mg |
| Fiber | 2 g |
| Sugar | 18 g |
Also Read: Dips for Chips Recipe
Frequently Asked Questions
Can I use crunchy peanut butter?
Yes. Crunchy peanut butter adds small bits of peanuts throughout the filling, giving the brownies extra texture.
Can I use natural peanut butter?
Natural peanut butter tends to separate and becomes much softer after baking, so regular creamy peanut butter produces the best results.
How do I know when the brownies are done?
The edges should be firm while the center still has a slight wobble. They will continue to set as they cool.
Can I make these brownies ahead of time?
Absolutely. They’re actually even better the next day after the filling has fully set and the flavors have developed.
Can I freeze Peanut Butter Stuffed Brownies?
Yes. Wrap each brownie individually and freeze in an airtight container for up to three months. Thaw overnight in the refrigerator or let them sit at room temperature before serving.
