1. Prepare the Oven and Baking Sheets

Start by preheating your oven to 375°F (190°C). Proper preheating is important because it allows the cookies to begin baking immediately, helping them develop the right texture and structure.

Line two baking sheets with parchment paper. This prevents sticking and encourages even browning on the bottoms of the cookies. Set the prepared baking sheets aside while you make the dough.

2. Combine the Dry Ingredients

In a medium bowl, add the all purpose flour, baking soda, and salt.

Whisk everything together until evenly combined. This simple step helps distribute the baking soda and salt throughout the flour so the cookies bake evenly and develop a consistent texture.

Set the bowl aside while you prepare the wet ingredients.

3. Cream the Butter and Sugars

In a large mixing bowl, add the softened unsalted butter, granulated sugar, and brown sugar.

Using an electric mixer, beat the mixture for several minutes until it becomes light, creamy, and fluffy. This process incorporates air into the dough, which helps create a softer cookie texture.

The brown sugar contributes moisture and chewiness, while the granulated sugar helps create lightly crisp edges.

4. Add the Peanut Butter

Add the creamy peanut butter to the butter and sugar mixture.

Mix until everything is fully incorporated and smooth. The peanut butter provides richness, flavor, and structure to the cookies while creating that classic nutty taste that pairs so well with chocolate.

Make sure there are no streaks of peanut butter remaining before moving on to the next step.

5. Mix in the Egg and Vanilla

Crack the egg into the bowl and add the vanilla extract.

Beat until the mixture becomes smooth and fully combined. The egg helps bind the ingredients together while contributing moisture and tenderness. The vanilla enhances the overall flavor and brings warmth to the finished cookies.

At this stage, the mixture should look creamy and uniform.

6. Add the Dry Ingredients

Gradually add the flour mixture to the wet ingredients.

Mix on low speed just until combined. Avoid overmixing because excessive mixing can develop too much gluten in the flour, resulting in tougher cookies.

Once the flour disappears into the dough, stop mixing. The dough should be thick and soft.

7. Fold in the Chocolate Chips and Peanuts

Add the semisweet chocolate chips and coarsely chopped peanuts to the bowl.

Using a rubber spatula or wooden spoon, gently fold them into the dough until evenly distributed.

The chocolate chips create pockets of melted chocolate throughout each cookie, while the chopped peanuts add extra crunch and reinforce the peanut flavor. Every bite should contain a little bit of both.

8. Chill the Dough if Desired

While the dough can be baked immediately, chilling it for 20 to 30 minutes can improve the texture.

A short chilling period allows the flavors to develop and helps prevent excessive spreading during baking. If your kitchen is particularly warm, this step is highly recommended.

Cover the bowl and place it in the refrigerator while the oven continues heating.

9. Scoop the Cookie Dough

Using a cookie scoop or tablespoon, portion the dough onto the prepared baking sheets.

Leave about 2 inches of space between each cookie because they will spread slightly as they bake.

For evenly sized cookies, try to keep each scoop consistent in size. This ensures all the cookies bake at the same rate.

10. Bake Until Golden

Place the baking sheets in the preheated oven.

Bake for approximately 10 to 12 minutes or until the edges are lightly golden brown. The centers may still look slightly soft, which is exactly what you want.

The cookies will continue cooking slightly from residual heat after they are removed from the oven.

Avoid overbaking, as this can lead to dry cookies instead of soft and chewy ones.

11. Cool on the Baking Sheet

Remove the cookies from the oven and allow them to cool on the baking sheet for about 5 minutes.

This resting period helps them firm up enough to be moved without breaking apart. The centers will continue setting while remaining soft and chewy.

12. Transfer and Serve

Transfer the cookies to a wire cooling rack to cool completely.

Enjoy them slightly warm for gooey chocolate pockets, or allow them to cool fully for a firmer texture. These cookies pair wonderfully with a cold glass of milk, hot coffee, or even a scoop of vanilla ice cream.

Store leftovers in an airtight container at room temperature for several days to maintain freshness.