Chunky Monkey Oatmeal Skillet Cookie (Printer View)

Warm oatmeal skillet with bananas, chocolate chips, and walnuts baked golden in a cast-iron pan.

# Components:

→ Dry Ingredients

01 - 1.5 cups old-fashioned rolled oats
02 - 1 cup all-purpose flour
03 - 0.5 teaspoon baking soda
04 - 0.5 teaspoon salt
05 - 0.5 teaspoon ground cinnamon

→ Wet Ingredients

06 - 0.5 cup unsalted butter, melted and slightly cooled
07 - 0.5 cup packed light brown sugar
08 - 0.25 cup granulated sugar
09 - 1 large egg
10 - 2 teaspoons vanilla extract
11 - 2 medium ripe bananas, mashed

→ Mix-ins

12 - 0.5 cup semisweet chocolate chips
13 - 0.5 cup chopped walnuts
14 - 0.25 cup unsweetened shredded coconut, optional

# Method steps:

01 - Preheat oven to 350°F. Lightly grease a 10-inch cast-iron skillet with butter or nonstick spray.
02 - In a large mixing bowl, whisk together oats, flour, baking soda, salt, and cinnamon.
03 - In a separate bowl, combine melted butter, brown sugar, and granulated sugar. Whisk until smooth.
04 - Add egg and vanilla extract to the wet mixture and whisk well. Stir in mashed bananas until fully combined.
05 - Pour wet mixture into dry ingredients and mix until just incorporated.
06 - Gently fold in chocolate chips, walnuts, and coconut if using.
07 - Spread dough evenly into the prepared cast-iron skillet.
08 - Bake for 20 to 24 minutes, until the top is golden and edges are set but center remains slightly soft.
09 - Let cool for 10 minutes before serving warm. Serve slices directly from the skillet, optionally topped with ice cream.

# Expert Advice:

01 -
  • Classic flavor combination of banana, chocolate, and walnuts.
  • Shareable format perfect for serving directly from the skillet.
  • Easy to prepare with simple ingredients and minimal cleanup.
  • A vegetarian-friendly dessert that is soft in the middle and golden at the edges.
02 -
  • Use very ripe bananas to ensure the best natural sweetness and moisture levels in the dough.
  • Allow the melted butter to cool slightly before mixing with the sugars to avoid cooking the egg prematurely.
  • Keep an eye on the oven; the edges should be set but the center should remain slightly soft for a fudgy finish.
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