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Flourless Peanut Butter Cookies

Flourless Peanut Butter Cookies

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Just three ingredients transform into impossibly tender cookies with an intense peanut flavor no flour-based recipe can match. The crackled tops and soft centers happen naturally when you trust the simplest formula in American baking.

Pastries & Cookies
American
Make Ahead
Quick Meal
10 min
Active Time
12 min cook22 min total
Yield24 cookies

This cookie shouldn't work. Three ingredients. No flour. No leavening. No butter. And yet it produces one of the most satisfying cookies in the American repertoire, with a concentrated peanut flavor that flour-based versions can only dream of achieving.

The recipe likely emerged during World War II rationing, when home bakers discovered that peanut butter's protein and fat could stand in for flour's structure. What began as necessity became revelation. The cookie spread through community cookbooks and church socials, passed hand to hand by women who understood that simplicity and greatness aren't mutually exclusive.

I've served these to pastry chefs who trained in Paris. They take one bite and ask for the recipe, expecting complexity. When I tell them it's three ingredients, they don't believe me. That disbelief is part of the magic. These cookies prove that technique matters less than understanding your ingredients. Peanut butter provides structure, fat, and flavor. Sugar adds sweetness and encourages that characteristic crackled top. The egg binds everything together and creates lift.

Make them once and you'll memorize the formula: equal parts peanut butter and sugar, one egg. That's the whole trick. The rest is just following through.

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Ingredients

creamy peanut butter

Quantity

1 cup

not natural style

granulated sugar

Quantity

1 cup

egg

Quantity

1 large

fine sea salt

Quantity

1/2 teaspoon

pure vanilla extract

Quantity

1 teaspoon

Equipment Needed

  • Rimmed baking sheets
  • Parchment paper
  • Wire cooling rack
  • Fork for crosshatch pattern

Instructions

  1. 1

    Prepare the oven

    Position a rack in the center of your oven and preheat to 350°F. Line two baking sheets with parchment paper. The parchment matters here because these cookies stick more readily than butter-based versions.

  2. 2

    Mix the dough

    In a medium bowl, combine the peanut butter, sugar, egg, salt, and vanilla. Stir vigorously with a wooden spoon or stiff spatula until the mixture forms a smooth, cohesive dough. This takes about two minutes of determined mixing. The dough will look slightly oily and smell intensely of roasted peanuts. This is correct.

    The peanut butter should be at room temperature for easier mixing. Cold peanut butter fights you. Let the jar sit out for an hour before you begin.
  3. 3

    Shape the cookies

    Roll level tablespoons of dough into balls between your palms. The dough is soft but not sticky. Place the balls two inches apart on your prepared sheets, giving them room to spread. You should fit twelve cookies per standard sheet.

  4. 4

    Create the crosshatch

    Dip a fork in granulated sugar and press gently into each ball, flattening it to about half an inch thick. Rotate the fork ninety degrees and press again to create the classic crosshatch pattern. Dip the fork in sugar between each cookie to prevent sticking. The pattern isn't just decorative. It ensures even baking and creates those characteristic ridges that become slightly crisp while the centers stay tender.

    Don't press too hard. You want cookies about half an inch thick. Thinner cookies will crisp throughout and lose their tender centers.
  5. 5

    Bake until crackled

    Bake one sheet at a time for 10 to 12 minutes, until the edges are set and the tops show deep cracks across the surface. The centers will look slightly underdone. This is what you want. The cookies continue cooking on the hot pan after they leave the oven. Overbaking produces dry, crumbly results that stick to your teeth rather than melting on your tongue.

  6. 6

    Cool completely

    Let the cookies rest on the baking sheet for five full minutes. They are extremely fragile when hot. After five minutes, transfer to a wire rack to cool completely. The texture transforms as they cool, moving from soft and delicate to tender but sturdy enough to pick up without breaking. Resist the temptation to eat them immediately. They're good warm, but they're better at room temperature when the texture has fully set.

Chef Tips

  • Use commercial peanut butter like Jif or Skippy, not natural style. The stabilizers and added oils in commercial brands produce better structure and more reliable results. Natural peanut butter separates and creates greasy, crumbly cookies.
  • For a deeper, more complex flavor, substitute half the granulated sugar with packed light brown sugar. The molasses notes complement the roasted peanut flavor beautifully.
  • These cookies freeze exceptionally well. Stack them with parchment between layers in an airtight container. They'll keep frozen for two months. Thaw at room temperature for fifteen minutes before serving.
  • For chocolate peanut butter cookies, fold half a cup of chocolate chips into the dough before shaping. The chocolate should be chopped if using a bar, so it distributes evenly.
  • If you're baking for someone with celiac disease, verify your peanut butter is certified gluten-free. Some brands process on shared equipment with wheat products.

Advance Preparation

  • Dough can be mixed, portioned into balls, and refrigerated for up to 3 days before baking. Cold dough balls take an extra 2 minutes in the oven.
  • Unbaked dough balls freeze well for up to 2 months. Freeze on a sheet until solid, then transfer to a freezer bag. Bake from frozen, adding 3 to 4 minutes to the baking time.
  • Baked cookies keep at room temperature in an airtight container for up to 5 days, though they rarely last that long.

Frequently Asked Questions

Nutrition Information

1 serving (about 45g)

Calories
90 calories
Total Fat
5.2 g
Saturated Fat
0.9 g
Trans Fat
0 g
Unsaturated Fat
4.3 g
Cholesterol
16 mg
Sodium
46 mg
Total Carbohydrates
9.9 g
Dietary Fiber
0.6 g
Sugars
7.9 g
Protein
2.6 g

Note: Chef personas and recipes are created with AI assistance. Cook with care: follow safe food-handling practices, check doneness with a thermometer when needed, and adapt for allergies and your kitchen.

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