Description
These One-Bowl Oatmeal Cookies are soft, chewy, and ready in under 30 minutes—no mixer and no chill time needed! Packed with old-fashioned oats and just the right amount of sweetness, they’re the perfect quick cookie fix. Add chocolate chips, raisins, or nuts if you’re feeling fancy!
Ingredients
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1/2 cup (1 stick) unsalted butter, melted
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1/2 cup brown sugar, packed
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1/4 cup granulated sugar
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1 large egg
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1 tsp vanilla extract
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3/4 cup all-purpose flour
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1/2 tsp baking soda
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1/2 tsp cinnamon (optional)
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1/4 tsp salt
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1 1/2 cups old-fashioned rolled oats
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1/2 cup add-ins (chocolate chips, raisins, or chopped nuts – optional)
Instructions
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Preheat oven to 350°F (175°C). Line a baking sheet with parchment paper.
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Mix wet ingredients:
In a large bowl, whisk together melted butter, brown sugar, and granulated sugar until smooth. Add the egg and vanilla, and mix until well combined. -
Add dry ingredients:
Sprinkle flour, baking soda, cinnamon (if using), and salt over the wet mixture. Stir until just combined. -
Fold in oats and add-ins:
Stir in the oats and your choice of mix-ins (if using) until everything is evenly distributed. -
Scoop and bake:
Drop dough by rounded tablespoons onto the prepared baking sheet, spacing them about 2 inches apart. Flatten slightly with the back of the spoon. -
Bake for 10–12 minutes, or until the edges are lightly golden and the centers still look slightly soft. Let cool on the baking sheet for 5 minutes before transferring to a wire rack.
Notes
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For crispier cookies, bake an extra 1–2 minutes.
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Use quick oats for a slightly softer texture.
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Cookies will keep in an airtight container for up to 5 days or can be frozen for later!