PB&J crumble cookies on parchment paper
✨ Cooking with Claude

PB&J Crumble Cookies

Childhood nostalgia meets grown-up baking. Thick peanut butter cookies with a jammy center and brown butter crumble on top.

🧑‍🍳 Prep: 20 min 🔥 Cook: 45 min 🍽 Serves 8 medium
🥜 peanut butter🫐 berry jam🧈 brown butter crumble

🤖 The AI Part

💭 The Prompt

"I want a cookie that tastes like a PB&J sandwich but fancier. Think bakery-level, not lunchbox."

🤖 Claude Suggested

Claude suggested a brown butter crumble topping and using a high-quality preserves instead of standard grape jelly. Also recommended chilling the dough for 30 minutes.

🍳 What Christina Changed

Swapped the raspberry preserves for mixed berry jam we had on hand. Added a pinch of flaky salt on top before baking. Skipped the chill time because I'm impatient — still worked fine.

📝 The Verdict

These are dangerous. The crumble adds a texture layer that makes them feel way more sophisticated than they are. The jam pools just right in the center. Will absolutely make again.

Ingredients

  • 1 cup creamy peanut butter
  • ¾ cup brown sugar, packed
  • 1 large egg
  • 1 tsp vanilla extract
  • ½ tsp baking soda
  • ¼ tsp salt
  • ⅓ cup mixed berry jam (or any preserves you love)

For the crumble topping

  • 3 tbsp butter, browned and cooled
  • ¼ cup flour
  • 2 tbsp brown sugar
  • Pinch of salt
  • Flaky salt for finishing

Instructions

  1. Make the crumble first. Brown the butter in a small pan until nutty and golden. Let it cool slightly, then mix with flour, brown sugar, and salt until crumbly. Set aside.

  2. Mix the cookie dough. Combine peanut butter, brown sugar, egg, vanilla, baking soda, and salt. Mix until smooth — it’ll be thick.

  3. Scoop and indent. Use a large cookie scoop (about 3 tbsp each). Place on a parchment-lined baking sheet. Press a deep well into the center of each with your thumb.

  4. Fill and top. Spoon about 1 tsp of jam into each well. Scatter the crumble generously over the top.

  5. Bake at 350°F for 12-14 minutes. They’ll look slightly underdone — that’s what you want. The centers will set as they cool.

  6. Finish with flaky salt while still warm. Let cool on the pan for at least 10 minutes before touching them.

Notes

These keep well in an airtight container for 3-4 days, but they’re best on day one when the crumble is still crunchy. The jam center stays gooey even after cooling completely.