- Step 1: Preheat the Oven: Preheat the oven to 375F (190C). Ensure the oven rack is positioned in the center for even baking. 
- Step 2: Cream Together Butter and Sugars: In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until the mixture is light and fluffy. This process incorporates air, which contributes to the cookie's texture. 
- Step 3: Add Vanilla, Eggs, and Peanut Butter: Beat in the vanilla extract, followed by the eggs, one at a time, mixing well after each addition. Gradually add in the peanut butter, ensuring it is fully incorporated into the mixture. 
- Step 4: Combine Dry Ingredients: In a separate bowl, whisk together the all-purpose flour, baking soda, and salt. This ensures that the baking soda is evenly distributed throughout the flour. 
- Step 5: Gradually Add Dry Ingredients to Wet Ingredients: Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix, as this can result in tough cookies. 
- Step 6: Drop by Rounded Tablespoons onto Baking Sheets: Drop rounded tablespoons of dough onto ungreased baking sheets, leaving about 2 inches between each cookie to allow for spreading. 
- Step 7: Flatten Cookies with a Fork: Use a fork to flatten the cookies, pressing down in a crisscross pattern. This not only creates a visually appealing design but also helps the cookies bake evenly. 
- Step 8: Bake: Bake for 10-12 minutes, or until the edges are golden brown and the centers are set. 
- Step 9: Cool on Baking Sheets: Remove the baking sheets from the oven and let the cookies cool on the sheets for a few minutes before transferring them to a wire rack to cool completely. This allows the cookies to firm up slightly, preventing them from breaking.
Tip: For a richer flavor, use natural peanut butter. If the dough seems too soft, chill it for 30 minutes before baking.