Warm Chocolate Chip Baked Oatmeal Skillet Dessert

Why You’ll Love This Recipe

• It tastes like a giant chocolate chip oatmeal cookie but is made with hearty oats and simple pantry ingredients.
• Everything mixes in two bowls and bakes in one skillet for easy prep and minimal cleanup.
• The texture is perfectly balanced: chewy oats, cake-like softness in the center, and lightly crisp edges.
• It is endlessly flexible: breakfast, dessert, or snack, and easy to adapt for gluten-free or dairy-free needs.

Grocery List

• Produce: 1 very ripe banana (optional, if using instead of yogurt)
• Dairy: Butter, eggs, milk, plain Greek yogurt (or extra milk if omitting), optional vanilla ice cream or whipped cream for serving
• Pantry: Old-fashioned rolled oats, oat flour or all-purpose flour, light brown sugar, baking powder, fine salt, ground cinnamon, vanilla extract, semisweet chocolate chips, flaky sea salt (optional)

Full Ingredients

For the Baked Oatmeal Chocolate Chip Skillet

• 1 1/2 cups (150 g) old-fashioned rolled oats (do not use quick or instant oats)
• 1/2 cup (60 g) oat flour or all-purpose flour
• 1 tsp baking powder
• 1/2 tsp fine sea salt or table salt
• 1 tsp ground cinnamon (optional but recommended)
• 1/3 cup (70 g) packed light brown sugar
• 2 large eggs, at room temperature if possible
• 1 1/4 cups (300 ml) milk (whole, 2%, or unsweetened almond/oat milk)
• 1/4 cup (60 g) plain Greek yogurt (2% or full-fat) or 1/4 cup (60 g) well-mashed very ripe banana
• 1/4 cup (55 g) unsalted butter, melted and slightly cooled or refined coconut oil
• 2 tsp pure vanilla extract
• 3/4 cup (130 g) semisweet chocolate chips, plus 2–3 tbsp extra for sprinkling on top
• 1 tsp butter or oil, for greasing the skillet

Optional Toppings and Serving Ideas

• Flaky sea salt, for sprinkling
• Vanilla ice cream or softly whipped cream, for dessert-style serving
• Plain or vanilla yogurt, for a more breakfast-style serving
• Fresh berries or sliced bananas

Step-by-Step Instructions

Step 1: Preheat the oven and prepare the skillet

Preheat your oven to 350°F (175°C) with a rack in the center position. Generously grease a 10-inch oven-safe skillet (cast iron works beautifully, but any ovenproof skillet or 9-inch round baking pan will do) with about 1 teaspoon of butter or oil. Make sure to coat the bottom and sides so the baked oatmeal releases easily and the edges get nicely golden.

Step 2: Combine the dry ingredients

In a medium mixing bowl, add the rolled oats, oat flour or all-purpose flour, baking powder, salt, cinnamon (if using), and brown sugar. Whisk or stir with a spoon until everything is evenly distributed and you no longer see streaks of brown sugar or clumps of baking powder. Coating the oats with the dry ingredients helps them bake up more evenly and gives the final skillet a tender, cake-like crumb.

Step 3: Whisk the wet ingredients

In a separate large bowl, crack in the eggs and whisk until smooth. Add the milk, Greek yogurt or mashed banana, melted butter or coconut oil, and vanilla extract. Whisk until the mixture is smooth and fully combined. If you used melted butter, make sure it is only slightly warm so it does not scramble the eggs. The mixture will look creamy and lightly frothy.

Step 4: Make the batter and fold in chocolate chips

Pour the dry mixture into the bowl with the wet ingredients. Using a spatula or wooden spoon, stir gently until everything is just combined and you can no longer see pockets of dry flour. Do not overmix; a few tiny lumps are fine. Fold in the 3/4 cup (130 g) chocolate chips so they are evenly distributed throughout the batter.

Let the batter rest for 5 minutes. This short rest allows the oats to hydrate slightly, which helps create a soft, cake-like interior while still keeping some chewy bite.

Step 5: Fill the skillet and bake

Pour the batter into your prepared skillet and spread it into an even layer with a spatula, pushing it gently into the edges. Sprinkle the top with the remaining 2–3 tablespoons of chocolate chips for a pretty, chocolate-studded finish.

Transfer the skillet to the oven and bake for 22–27 minutes, or until the edges are set and golden, the top looks dry and lightly browned, and the center is just barely jiggly when you gently shake the pan. A toothpick inserted near the center should come out mostly clean with a few moist crumbs (and maybe a bit of melted chocolate), but not wet batter.

Step 6: Cool slightly and serve warm

Remove the skillet from the oven and place it on a heat-safe surface or cooling rack. Let the baked oatmeal rest for 5–10 minutes. This helps it set just enough to scoop cleanly while staying soft and gooey inside.

If you like a sweet-salty contrast, sprinkle a pinch of flaky sea salt over the top while it is still warm so it adheres nicely. Serve the skillet family-style: scoop generous spoonfuls into bowls. For dessert, add a scoop of vanilla ice cream or a dollop of whipped cream on top so it melts into the warm oats and chocolate. For breakfast, top with a spoonful of yogurt and a handful of berries or sliced banana.

Step 7: Reheat or enjoy leftovers

If you are not serving it all at once, let the skillet cool to room temperature. Slice or spoon portions into airtight containers. To reheat a single serving, place it in a microwave-safe bowl with a splash of milk and warm for 30–45 seconds, just until heated through and the chocolate softens again. The texture will stay pleasantly chewy and cake-like even after chilling and reheating.

Pro Tips

• Use old-fashioned oats only: Quick oats will make the skillet denser and mushier. Old-fashioned rolled oats give the best chewy-yet-cake-like texture.
• Do not overbake: Pull the skillet when the edges are set but the center still looks slightly soft. It will continue to firm up as it cools and stay moist and tender.
• Resting the batter matters: Letting the mixed batter sit for 5 minutes before baking allows the oats to hydrate and prevents a dry or crumbly result.
• Control sweetness with chocolate choice: Use bittersweet or dark chocolate chips for a less-sweet skillet, or milk chocolate chips for a more dessert-like flavor.
• Skillet size adjustments: If using an 8-inch skillet or pan, increase the bake time by 3–5 minutes since the batter will be thicker; if using a 9×13-inch pan, start checking at 18–20 minutes.

Variations

• Peanut Butter Swirl: Warm 1/4 cup (60 g) peanut butter until pourable, then drizzle it over the batter in the skillet and swirl with a knife before baking. Top with chopped peanuts after baking if you like extra crunch.
• Berry Chocolate Chip Skillet: Fold 1/2 cup (70 g) fresh or frozen berries (blueberries or raspberries work well) into the batter along with the chocolate chips. Add 5–7 extra minutes of bake time if using frozen berries.
• Gluten-Free and Dairy-Free: Use certified gluten-free oats and oat flour, and choose a gluten-free baking powder. Swap butter for coconut oil and use non-dairy milk and a dairy-free yogurt or extra mashed banana. Use dairy-free chocolate chips.

Storage & Make-Ahead

Allow the baked oatmeal skillet to cool completely, then cover the skillet tightly with foil or transfer portions to airtight containers. Store in the refrigerator for up to 4 days. Reheat individual servings in the microwave with a splash of milk for 30–45 seconds, or warm the whole skillet in a 300°F (150°C) oven for 10–15 minutes, covered with foil.

To freeze, cut cooled baked oatmeal into wedges or squares, wrap each piece tightly in plastic or parchment, and place in a freezer bag. Freeze for up to 2 months. Thaw overnight in the refrigerator or reheat from frozen in the microwave, adding a bit of milk to keep it moist.

For a make-ahead option, you can assemble the wet and dry ingredients separately up to 12 hours in advance. Store each mixture covered in the refrigerator, then combine, fold in chocolate chips, rest for 5 minutes, and bake just before serving.

Nutrition (per serving)

Approximate values per serving (1/8 of the skillet, using butter, Greek yogurt, and 2% milk): about 320 calories, 6 g protein, 14 g fat, 42 g carbohydrates, 3 g fiber, and 22 g sugars. These numbers will vary based on the specific ingredients and brands you use, and whether you add toppings like ice cream or extra chocolate.