One Bowl, One Method, Many Smiles
1. Mix Wet Ingredients
In a large bowl, whisk together the melted butter, brown sugar, and granulated sugar until smooth. Add the egg and vanilla, and whisk until well combined.
2. Add Dry Ingredients
To the same bowl, add the flour, baking soda, cinnamon (if using), and salt. Stir until almost combined, then fold in the oats and any add-ins you like.
3. Scoop and Bake
Preheat the oven to 350°F (175°C). Line a baking sheet with parchment paper. Scoop tablespoon-sized portions of dough and place them a couple inches apart on the sheet. Flatten slightly with your hand or the back of a spoon.
Bake for 9–12 minutes, until the edges are golden but the centers are still soft. Let cool on the baking sheet for 5 minutes before transferring to a wire rack.
Tips for Perfect Oatmeal Cookies
Want chewier cookies? Use more brown sugar than white.
Prefer crispier edges? Bake a minute or two longer.
Customize away! Swap add-ins depending on your mood or what’s in the pantry.
Chill the dough for 15–20 minutes if you want thicker, bakery-style cookies.
Serving & Storing
These cookies are fantastic fresh out of the oven, but they store beautifully, too. Keep them in an airtight container at room temperature for up to 5 days—or freeze them for longer storage. They're great for quick snacks, coffee breaks, or even ice cream sandwiches!
Final Thoughts
With their irresistible texture and heartwarming flavor, Easy One-Bowl Oatmeal Cookies are proof that the best treats often come from the simplest recipes. No stress, no mess—just a handful of ingredients and a whole lot of homemade joy. Once you bake a batch, don’t be surprised if they become a regular part of your cookie rotation