Bake the 5-ingredient Peanut Butter Oatmeal Chocolate Chip Cookies Recipe for quick, melty, crowd-pleasing cookies.
Preheat the oven to 350°F (175°C). Set the rack to the center position so the cookies bake evenly; this simple first step ensures consistent browning. While the oven comes up to temperature, position your baking sheet nearby so the workflow stays calm and efficient.
In a sturdy mixing bowl combine the peanut butter, sugar, the large egg, and the baking soda. Stir gently until the mixture becomes a uniform, glossy mass—thick, cohesive, and slightly sticky—taking care to scrape the bowl so nothing clings to the sides. The texture should be dense and pliable, able to hold spoonfuls without spreading immediately.
Gently fold the chocolate chips into the dough until they are evenly distributed; use a spatula so you preserve the chunky texture and avoid overworking the dough. You should see dark chocolate flecks and pockets throughout the tan peanut-butter matrix, promising melty pockets when baked.

Drop rounded spoonfuls of dough onto an ungreased baking sheet, leaving ample space between each mound so they can spread slightly. Aim for evenly sized portions so baking time stays consistent and the resulting cookies form nicely craggy domes with visible chips on top.
Slide the baking sheet into the preheated oven and bake for about 10–12 minutes, watching for the edges to take on a light golden brown while the centers remain soft. The cookies will set further as they cool, so remove them when the edges are just beginning to color.
Allow the cookies to rest on the baking sheet for a few minutes so they stabilize, then transfer them to a wire rack to cool completely. As they cool, the surface will firm up into a slightly craggy, oat-speckled texture with chocolate chips peeking through—perfect for serving warm or at room temperature.
