No-Bake Peanut Butter Cookies Recipe
A precisely timed one-minute boil of sugar, butter, and milk creates the exact syrup consistency needed to set the oats firm once cooled, and stirring in the peanut butter off the heat keeps its flavor from scorching or turning grainy.
- Prep
- 10 min
- Cook
- 5 min
- Total
- 45 min
- Servings
- 24
Ingredients
- 2 cups granulated sugar
- 1/2 cup unsalted butter
- 1/2 cup whole milk
- 1 cup creamy peanut butter
- 1 teaspoon vanilla extract
- 3 cups old-fashioned rolled oats
- 1/4 teaspoon salt
Nutrition per serving
- Calories
- 195
- Protein
- 4g
- Carbs
- 27g
- Fat
- 8g
Based on the recipe as written, one serving. Recalculates if you swap an ingredient above. An estimate only, exact values depend on the specific ingredients used.
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Instructions
- 1Line two baking sheets with parchment or wax paper.
- 2In a medium saucepan, combine the sugar, butter, and milk over medium heat, stirring occasionally until the butter melts.
- 3Once the mixture reaches a full rolling boil, set a timer and boil for exactly 1 minute, stirring constantly so the sugar doesn't scorch on the bottom.
- 4Remove the pan from the heat immediately and stir in the peanut butter, vanilla, and salt until smooth.
- 5Add the oats and stir until every oat is coated and no dry patches remain.
- 6Working quickly, drop rounded tablespoons of the mixture onto the prepared sheets, spacing them about 1 inch apart.
- 7Let the cookies sit at room temperature for 30-45 minutes, or in the refrigerator for about 15 minutes, until firm to the touch.
Tips & variations
- Natural peanut butter (the kind that separates) tends to make softer, oilier cookies that take longer to set; a no-stir commercial creamy peanut butter gives more reliable results.
- Stir in 3 tablespoons of cocoa powder along with the sugar and butter for a chocolate peanut butter version.
- Quick oats work in a pinch but give a softer, less chewy texture than old-fashioned rolled oats.
- A pinch of flaky salt pressed onto each cookie right after portioning adds contrast to the sweetness.
Storage & reheating
Store set cookies in an airtight container at room temperature for up to 1 week, separating layers with parchment so they don't stick together. They also freeze well for up to 3 months; thaw at room temperature for about 20 minutes before eating.
Tips from the Tulo kitchen
- On humid days, cookies can take noticeably longer to firm up; move the sheets to the refrigerator if they're still tacky after 45 minutes.
- Portion the cookies with a small cookie scoop right after mixing, since the mixture firms up fast and gets harder to shape the longer it sits.
FAQ
Why didn't my no-bake cookies set?
The most common cause is not boiling the sugar mixture long enough or at a hard enough boil; it needs a full minute at a true rolling boil, not just a simmer, to reach the right consistency.
Can I use quick oats instead of old-fashioned oats?
Yes, but the cookies will be softer and less chewy since quick oats absorb more liquid and break down more, giving a smoother, less textured bite.
Can I use almond butter or another nut butter?
Yes, almond butter or sunflower seed butter both work as a 1:1 swap for peanut butter, though the flavor and slightly looser texture of almond butter can make the cookies a touch softer.
How long do no-bake peanut butter cookies need to set?
Usually 30-45 minutes at room temperature, or about 15 minutes in the refrigerator if you want them ready faster.