Chunky Monkey Oatmeal Cookie Skillet

This Chunky Monkey Oatmeal Cookie Skillet is a warm, shareable dessert that brings the classic flavor combination of ripe bananas, rich chocolate, and toasted walnuts to life. Baked to a perfect golden brown in a cast-iron pan, it offers a delightful contrast between crispy edges and a soft, gooey center that feels like a cross between a cozy banana bread and a chewy oatmeal cookie.

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Bringing the nostalgic flavors of the classic smoothie into a baked format, this skillet cookie is designed for effortless sharing. It is an ideal treat for family gatherings or cozy nights in, where everyone can grab a spoon and dive into the warm, banana-scented layers of melted chocolate and nutty goodness.

Ingredients

• Dry Ingredients: 1 1/2 cups (165 g) old-fashioned rolled oats, 1 cup (125 g) all-purpose flour, 1/2 teaspoon baking soda, 1/2 teaspoon salt, 1/2 teaspoon ground cinnamon
• Wet Ingredients: 1/2 cup (115 g) unsalted butter (melted and slightly cooled), 1/2 cup (100 g) light brown sugar (packed), 1/4 cup (50 g) granulated sugar, 1 large egg, 2 teaspoons vanilla extract, 2 medium ripe bananas (mashed, about 1 cup / 225 g)
• Mix-ins: 1/2 cup (90 g) semisweet chocolate chips, 1/2 cup (55 g) chopped walnuts, 1/4 cup (25 g) unsweetened shredded coconut (optional)

Instructions

Step 1

Preheat your oven to 350°F (175°C). Lightly grease a 10-inch cast-iron skillet with butter or nonstick spray.

Step 2

In a large bowl, whisk together the oats, flour, baking soda, salt, and cinnamon.

Step 3

In a separate bowl, combine the melted butter, brown sugar, and granulated sugar. Whisk until smooth.

Step 4

Add the egg and vanilla extract to the wet mixture; whisk well. Stir in the mashed bananas until fully combined.

Step 5

Pour the wet mixture into the dry ingredients. Mix until just incorporated.

Step 6

Gently fold in the chocolate chips, walnuts, and coconut (if using).

Step 7

Spread the dough evenly into the prepared skillet.

Step 8

Bake for 20–24 minutes, or until the top is golden and the edges are set but the center is still a bit soft.

Step 9

Let cool for 10 minutes before serving warm. Serve slices directly from the skillet, optionally topped with ice cream.

Zusatztipps für die Zubereitung

Allow the skillet to rest for at least 10 minutes after baking; this helps the internal structure set so it is easier to slice. If you have leftovers, they are best enjoyed warm and can be gently reheated directly in the skillet or in a microwave to restore that gooey texture.

Varianten und Anpassungen

For those with nut allergies, simply omit the walnuts or replace them with sunflower seeds for a similar crunch. You can also experiment with the flavor profile by substituting the semisweet chocolate chips with peanut butter chips or dark chocolate chunks for an even richer experience.

Serviervorschläge

This skillet cookie is a showstopper when served warm straight from the oven. For the ultimate dessert experience, top the entire pan with a few large scoops of vanilla ice cream, letting it melt into the crevices of the cookie, and serve individual portions with extra chocolate drizzle if desired.

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Indulge in the decadent fusion of fruit, nuts, and chocolate with this Chunky Monkey Oatmeal Cookie Skillet. It is a simple yet impressive way to elevate classic oatmeal cookies into a gourmet, shared experience that everyone will enjoy.

Recipe FAQs

→ Can I make this ahead of time?

Yes, you can prepare the dough up to 24 hours in advance and store it refrigerated. Let it come to room temperature for about 15 minutes before baking, or add a couple extra minutes to the baking time.

→ What if I don't have a cast-iron skillet?

A 10-inch round cake pan, pie dish, or even an 8x8 square baking pan works well. Just adjust the baking time slightly and check for doneness a few minutes earlier since different materials conduct heat differently.

→ Can I freeze this?

Absolutely. Bake and cool completely, then wrap tightly in plastic wrap and foil. Freeze for up to 3 months. Thaw overnight in the refrigerator and reheat in a 350°F oven for 10-15 minutes until warm.

→ How do I know when it's done?

The edges should be golden brown and set, while the center will still appear slightly soft. A toothpick inserted near the edges should come out mostly clean. Remember, it continues cooking as it cools, so don't overbake.

→ Can I use quick oats instead of old-fashioned?

While old-fashioned oats provide better texture, you can substitute quick oats in a pinch. The final product will have a slightly softer, less chewy texture but still taste delicious.

→ What's the best way to serve?

Warm is best, straight from the skillet. Top with vanilla ice cream, whipped cream, or a drizzle of chocolate sauce. Scoop portions directly onto plates while still warm for that irresistible gooey texture.