3-Ingredient Peanut Butter Cookies

3-Ingredient Peanut Butter Cookies

Golden brown 3‑ingredient peanut butter cookies with crisscross tops served on a Japanese ceramic plate with chopsticks, peanuts, sugar, and egg in a cozy home‑style setting.
This 3-Ingredient Peanut Butter Cookie recipe is the easiest dessert you’ll ever make — no flour, no butter, no mixer. Just peanut butter, sugar, and an egg. Perfect for college students, beginners, or anyone craving a fast, cheap, homemade treat.


3-Ingredient Peanut Butter Cookies

Servings: 10–12 cookies   |   Prep Time: 5 minutes   |   Cook Time: 10 minutes

Ingredients

  • 1 cup peanut butter (creamy or crunchy)
  • 1 cup sugar (granulated or brown)
  • 1 large egg

Instructions

  1. Preheat oven to 350°F (175°C). Line a baking sheet with parchment paper.
  2. In a bowl, mix peanut butter, sugar, and egg until smooth.
  3. Roll dough into small balls and place on the baking sheet.
  4. Flatten each ball with a fork in a crisscross pattern.
  5. Bake for 8–10 minutes, or until edges are set. Let cool on the pan before serving.

Notes

  • Do not overbake — cookies will firm up as they cool.
  • Dough may be soft if using natural peanut butter; chill for 10 minutes if needed.

Estimated Cost

  • Peanut butter: $1.25
  • Sugar: $0.20
  • Egg: $0.25

Total cost: About $1.70
Cost per cookie: Around $0.14

Why This Recipe Works

  • Only 3 pantry ingredients.
  • No flour, butter, or mixer needed.
  • Ready in under 15 minutes.
  • Naturally gluten-free.
  • Perfect for late-night or dorm baking.

Substitutions & Variations

  • Softer cookies: Use brown sugar instead of white.
  • Add-ins: 2–3 tbsp chocolate chips or chopped nuts.
  • Flavor boost: Add 1/2 tsp vanilla extract.
  • Natural peanut butter: Stir well; chill dough if too soft.

Storage Tips

  • Room temperature: 4–5 days in an airtight container.
  • Freezer: Up to 2 months in a freezer bag.
  • Reheat: Microwave 5–7 seconds for a warm, soft cookie.

FAQ

Can I double the recipe?
Yes, just double all ingredients and bake in batches.

Can I make them sugar-free?
You can try a 1:1 sugar substitute like erythritol, but texture may change slightly.

Can I use crunchy peanut butter?
Yes, it adds great texture.

Final Tips

For picture-perfect cookies, keep the dough balls the same size and don’t skip the fork crisscross pattern. These are ideal for quick snacks, study breaks, or sharing with roommates.

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