There are some recipes that hardly seem like recipes at all, just a little bit of pantry wisdom passed from one good cook to the next, and these peanut butter oat bars are exactly that kind of treasure.
Around here, a simple pan of sweet, chewy bars has saved many a church supper, picnic table, and last-minute family cookout, and with only peanut butter, maple syrup, and rolled oats, they come together with the kind of practical ease Midwestern kitchens have always prized.
These bars are mighty fine on their own with a glass of cold milk or a hot cup of coffee, but they also fit right in beside a spread of cookout favorites like grilled burgers, baked beans, fresh fruit, or a bowl of vanilla ice cream for dessert.
Peanut butter oat bars served with coffee on a simple dessert plate
Peanut butter oat bars served with coffee on a simple dessert plate
If you are packing them along for a picnic or potluck, they travel well and make a sturdy little sweet to round out a plate.
3-Ingredient Peanut Butter Oat Bars
Servings: 12 bars
3-ingredient peanut butter oat bars in a glass casserole dish
3-ingredient peanut butter oat bars in a glass casserole dish
Ingredients
1 cup creamy peanut butter
1/2 cup maple syrup
2 cups rolled oats
Directions
- Line an 8-inch square baking dish or small casserole dish with parchment paper, or lightly grease it if you prefer, and set it aside.
Prepared glass baking dish lined with parchment
Prepared glass baking dish lined with parchment - In a medium saucepan over low heat, stir together the peanut butter and maple syrup until smooth, warm, and fully combined.
Peanut butter and maple syrup melting together in a saucepan
Peanut butter and maple syrup melting together in a saucepan - Remove the pan from the heat and stir in the rolled oats until every bit is well coated and the mixture is thick and sticky.
Rolled oats mixed into the peanut butter syrup mixture
Rolled oats mixed into the peanut butter syrup mixture - Press the mixture firmly and evenly into the prepared dish, smoothing the top with the back of a spoon or a piece of parchment paper.
Oat bar mixture pressed into a glass casserole dish
Oat bar mixture pressed into a glass casserole dish - Chill for 1 to 2 hours until firm, then lift from the dish and cut into squares or bars to serve.
Chilled oat bars being lifted from the pan with parchment
Chilled oat bars being lifted from the pan with parchment - For the neatest slices, refrigerate the bars a little longer before cutting, then store leftovers covered in the refrigerator.
Finished peanut butter oat bars cut into squares and plated
Finished peanut butter oat bars cut into squares and plated
Variations & Tips
For a softer bar: If you like a tender, more snack-like bar, do not pack the mixture too tightly into the pan. A gentle press will give you a slightly softer bite.
Soft textured peanut butter oat bars with a tender crumb
Soft textured peanut butter oat bars with a tender crumb
For a firmer bar: Press the mixture down very firmly and chill it thoroughly before slicing. That little bit of patience gives you cleaner edges and bars that hold together beautifully for travel.
Firmly packed peanut butter oat bars with clean cut edges
Firmly packed peanut butter oat bars with clean cut edges
Use old-fashioned oats: Rolled old-fashioned oats give these bars the best hearty texture. Quick oats can work in a pinch, but the bars will be more compact and less pleasantly chewy.
Peanut butter oat bars highlighting hearty rolled oat texture
Peanut butter oat bars highlighting hearty rolled oat texture
Pantry note: Natural peanut butter can be used, but be sure it is stirred very well first.
Jar of stirred natural peanut butter beside sliced oat bars
Jar of stirred natural peanut butter beside sliced oat bars
If it is too oily or too dry, the bars may not set as evenly as they do with regular creamy peanut butter.