These No Bake Chocolate Oat Bars are rich, chewy, and layered with buttery oats and a creamy chocolate-peanut-butter filling. They are an easy make-ahead dessert made with simple pantry ingredients, and there is no oven required.
The original RecipesNeed version uses butter, brown sugar, vanilla, quick-cooking oats, semisweet chocolate chips, and peanut butter. The oat mixture forms the top and bottom layers, while the melted chocolate-peanut-butter mixture creates the soft center.
Why You’ll Love These No-Bake Bars
They have the texture of a chewy oat cookie with a smooth chocolate filling, but you never have to turn on the oven. They also need refrigerator time to set, which makes them especially convenient to prepare ahead.
Make the Buttery Oat Mixture
Melt the butter, then stir in the brown sugar and vanilla. Add the quick-cooking oats and cook the mixture over low heat as directed in the recipe card. This step helps the oat layers hold together once chilled.
Melt the Chocolate and Peanut Butter
Warm the semisweet chocolate chips and peanut butter together over low heat until smooth. Keep the heat gentle so the chocolate stays glossy instead of becoming thick or grainy.
Layer and Chill
Press part of the oat mixture firmly into the pan, spread the chocolate filling across the surface, then crumble or press the remaining oats over the top. Chill until the bars are completely firm before slicing.
Tips for Clean Slices
- Use quick-cooking oats for the original texture.
- Press the bottom oat layer firmly into the pan.
- Melt the chocolate mixture over low heat.
- Chill for 2 to 3 hours before cutting.
- Use a sharp knife and wipe it between slices if the filling is soft.
Storage
Keep the bars covered in the refrigerator so the chocolate layer stays firm. They are a good make-ahead dessert and can be sliced shortly before serving.
Frequently Asked Questions
How long do the bars need to chill?
Give them about 2 to 3 hours in the refrigerator, or until completely firm.
What size pan should I use?
The earlier RecipesNeed version was built for a 9×9-inch pan and makes about 16 bars.
No Bake Chocolate Oat Bars
Ingredients
- 1 cup butter
- 1/2 cup packed brown sugar
- 1 teaspoon vanilla extract
- 3 cups quick cooking oats
- 1 cup semisweet chocolate chips
- 1/2 cup peanut butter
Instructions
- Grease a 9×9 inch square pan.
- In a large saucepan over medium heat, melt the butter.
- Stir in the brown sugar and vanilla extract until combined.
- Mix in the quick cooking oats.
- Cook over low heat for 2 to 3 minutes, stirring often, until the ingredients are well blended.
- Press half of the oat mixture firmly into the bottom of the prepared pan.
- Reserve the remaining oat mixture for the topping.
- In a small heavy saucepan over low heat, melt the chocolate chips and peanut butter together.
- Stir frequently until the chocolate mixture is smooth.
- Pour the chocolate peanut butter mixture over the oat crust in the pan.
- Spread the chocolate layer evenly with a knife or the back of a spoon.
- Crumble the remaining oat mixture over the chocolate layer.
- Press the topping gently so it sticks to the chocolate layer.
- Cover the pan and refrigerate for 2 to 3 hours, or overnight, until firm.
- Let the bars sit at room temperature for a few minutes before cutting into squares.
