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Peanut Butter Banana Baked Oatmeal - Cozy, Simple, and Satisfying

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Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Servings: 6 servings
Ingredients Method

Ingredients
  

  • 2 large ripe bananas, mashed (about 1 cup)
  • 2 large eggs (or 2 flax eggs for vegan)
  • 1/2 cup creamy peanut butter (natural or regular)
  • 1/4 cup pure maple syrup or honey
  • 1 1/2 cups milk of choice (dairy or unsweetened almond/oat milk)
  • 2 teaspoons vanilla extract
  • 2 cups old-fashioned rolled oats (not quick oats)
  • 1 teaspoon baking powder
  • 1/2 teaspoon ground cinnamon
  • 1/4 teaspoon fine salt
  • Optional add-ins: 1/3 cup chocolate chips, chopped nuts, or blueberries
  • Optional topping: Sliced banana, an extra drizzle of peanut butter, or a sprinkle of flaky salt

Method
 

  1. Preheat the oven. Set it to 350°F (175°C). Lightly grease an 8x8-inch baking dish or line it with parchment for easy cleanup.
  2. Mash the bananas. In a large bowl, mash the bananas until smooth with a few small lumps. You should have about 1 cup.
  3. Whisk in the wet ingredients. Add eggs, peanut butter, maple syrup, milk, and vanilla. Whisk until the mixture is smooth and cohesive. If your peanut butter is very thick, warm it slightly to help it blend.
  4. Add the dry ingredients. Stir in oats, baking powder, cinnamon, and salt until just combined. Fold in any optional add-ins like chocolate chips or nuts.
  5. Pour and top. Pour the batter into the prepared baking dish. If you like, place a few banana slices on top and gently press them in. A light swirl of peanut butter looks great too.
  6. Bake. Bake for 30–35 minutes, until the center is set and the edges are lightly golden. It should feel slightly springy when pressed.
  7. Cool and slice. Let it rest for 10–15 minutes to set. Slice into squares and serve warm with a drizzle of peanut butter or a splash of milk.