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Breakfast · Part 2 of 3: Instructions

Easy Peaches and Cream Baked Oatmeal Step-by-step instructions

A top-down view of a rectangular baking dish filled with rolled oats, peach slices, and a golden brown sugar crust.
Prep
Cook
Total
Serves
6
Includes 10 min resting

Before you start

Before beginning, ensure the oven is fully preheated to the required temperature to allow for even baking. Have all ingredients measured and ready to assemble, especially the fresh peaches, which should be sliced into uniform, thin pieces for consistent cooking.

Verify that the baking dish is clean and ready, and check that the cream and eggs are at room temperature to help them incorporate smoothly into the custard mixture.

Ingredients at a glance (5)
  • 3 cups rolled oats
  • 3 fresh peaches, sliced
  • 2 cups heavy cream
  • 2 large eggs
  • 1/2 cup brown sugar

Instructions

Assembling the base

  1. Prepare the base
    Preheat the oven to 350°F (175°C). In a large baking dish, spread the rolled oats evenly across the bottom. Arrange the sliced peaches in a fanned pattern over the top of the oats to ensure even distribution of fruit flavor throughout the dish.
    Look for The oats should form an even layer and the peaches should be arranged neatly.
    Tip Ensure the baking dish is clean and dry before adding the oats to prevent sticking.

The oats should be spread in an even layer across the bottom of the dish. The peach slices should be arranged in a deliberate pattern, which not only ensures even cooking but also creates a beautiful presentation once the dish is removed from the oven.

Adding the custard

  1. Add the custard
    In a separate bowl, whisk together the heavy cream and eggs until fully combined. Pour the mixture slowly over the oats and peaches in the baking dish, ensuring the liquid covers the oats completely. Sprinkle the brown sugar evenly over the entire surface.
    Look for The liquid should just cover the oats, and the brown sugar should form a thin, even layer on top.
    Tip Pouring slowly helps the liquid penetrate the layers of oats more effectively.

The cream and egg mixture should be poured uniformly over the oats, ensuring no dry spots remain. The brown sugar should be sprinkled in a light, consistent layer across the top, which will eventually melt and caramelize to form the signature crust.

Baking until golden

  1. Bake and set
    Place the dish in the preheated oven and bake until the top is golden brown and the edges are bubbling. The internal temperature of the custard base should reach 160°F (71°C) to ensure the eggs are fully cooked. Remove from the oven and let it rest for at least 10 minutes before serving.
    Look for The top should look golden and caramelized, and the edges should be bubbling visibly.
    Safe temperature 160°F (71°C) internal temperature (egg dishes)
    Tip Allowing the dish to rest helps the custard set properly for cleaner servings.

The dish is ready when the surface is golden and the edges are bubbling. The custard should be set, and the kitchen should smell warm and fragrant. Ensure the internal temperature reaches 160°F (71°C) before pulling the dish from the oven.

Common mistakes

A common mistake is using instant oats instead of rolled oats, which can lead to a texture that is too soft or mushy.

Another error is failing to let the dish rest after removing it from the oven; resting is critical for the custard to firm up, allowing for neat squares to be lifted out.

Avoid overcrowding the peaches, as this can trap excess moisture and prevent the center from setting properly.

How to tell it’s done

The baked oatmeal is done when the top has developed a deep golden brown color and the edges show signs of bubbling.

The center should feel firm to the touch, and a knife inserted into the middle should come out clean, indicating that the custard has set. The internal temperature must reach 160°F (71°C) to ensure the eggs are fully cooked throughout.

  • Egg dishes: 160°F (71°C) in the thickest part

Coming up in Part 3: common questions

  • Can this be made ahead of time?
  • What happens if the oats are too mushy?
  • Can the heavy cream be replaced?

Also in Part 3: variations (Mixed Berry Baked Oatmeal, Spiced Apple Baked Oatmeal), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)