Creamy Tres Leches Baked Oatmeal Recipe

It’s baked oatmeal for breakfast! This Tres Leches Baked Oatmeal captures the creamy, cinnamon-kissed flavor of tres leches cake in a hearty oatmeal bake that’s perfect for breakfast, brunch, or meal prep.

Decadent Tres Leches Baked Oatmeal

This baked oatmeal was inspired by the classic tres leches dessert, but turned into a comforting, sliceable breakfast that serves a crowd. Using three varieties of milk in a warming cinnamon-maple sauce gives each square the signature tres leches creaminess while keeping the wholesome texture of oatmeal. It’s an indulgent yet approachable way to enjoy cake-like flavors for breakfast.

Because it’s baked, this dish holds together like a firm bread or muffin and reheats beautifully, making it an excellent make-ahead breakfast or brunch option. Top with whipped cream, fresh berries, or a spoonful of yogurt when serving to enhance the tres leches experience.

What is baked oatmeal?

Baked oatmeal combines rolled or quick-cooking oats with eggs, milk, and flavorings, then bakes them into a sliceable, cake-like bake. The texture is heartier than porridge but softer than bread, making it ideal for topping and transporting. It’s a convenient way to enjoy oatmeal with a cake-like presentation — and this tres leches version layers in a silky milk sauce for extra richness.

Why make baked oatmeal?

Baked oatmeal is a favorite for anyone who wants a quick reheatable breakfast that still feels special. It’s a great make-ahead option for busy mornings, family brunches, or feeding a crowd. The firm texture makes it portable and perfect for pairing with fruits, nut butters, or a drizzle of extra milk or sauce at serving.

Tres Leches Baked Oatmeal Ingredients

Oatmeal Base

• 1 medium ripe banana, smashed
• 2 large eggs
• 2 teaspoons vanilla extract
• 3 tablespoons maple syrup
• 1 3/4 cups unsweetened oat milk
• 1 1/2 cups quick-cooking oats
• 1/2 cup all-purpose flour
• 1 1/2 teaspoons baking powder
• 1 1/2 teaspoons ground cinnamon
• 1/4 teaspoon salt

Tres Leches Sauce

• 1/4 cup evaporated milk
• 1/4 cup 2% milk
• 1/4 cup oat milk
• 1 tablespoon maple syrup
• 1/2 teaspoon ground cinnamon

Optional Toppings

• Whipped cream or whipped coconut cream
• Sliced strawberries or fresh berries
• Vanilla Greek yogurt

How to make Tres Leches Baked Oatmeal

1. Prepare & preheat

Preheat your oven to 350ºF and line an 8×8-inch baking dish with parchment paper for easy removal.

2. Combine dry ingredients

In a large bowl, whisk together the quick-cooking oats, all-purpose flour, baking powder, ground cinnamon, and salt until evenly combined.

3. Mix wet ingredients

In a separate bowl, mash the banana and whisk in the eggs, vanilla extract, maple syrup, and oat milk. Add the dry ingredients to the wet mixture and stir until just combined.

4. Bake

Pour the batter into the prepared baking dish and bake at 350ºF for about 30 minutes, or until the top is golden and a toothpick in the center comes out mostly clean. If the center needs more time, tent with foil and bake 5 additional minutes.

5. Make the tres leches sauce

While the bake is cooling, combine evaporated milk, 2% milk, oat milk, maple syrup, and ground cinnamon in a small saucepan. Warm gently over medium heat until it reaches a simmer, then remove from heat. Do not pour the sauce over the bake until ready to serve to avoid sogginess.

6. Slice and serve

Let the oatmeal cool slightly, then slice into squares. Serve each portion in a bowl and spoon 1–2 tablespoons of the warm tres leches sauce over the top. Finish with whipped cream, sliced strawberries, or a dollop of vanilla yogurt as desired.

Top tips

Use quick-cooking oats: This recipe is formulated for quick oats. Substituting old-fashioned rolled oats will change texture and baking time.

Add the sauce at serving: To keep slices from becoming soggy, wait to pour the tres leches sauce over each portion until you’re ready to serve.

Store separately: Keep any leftover tres leches sauce in a separate container and reheat it before pouring over reheated oatmeal squares.

Storage

Allow the baked oatmeal to cool completely, then slice into single servings and store in an airtight container. Refrigerate for up to 5 days. For longer storage, wrap tightly and freeze for up to 3 months. Thaw and reheat before adding the tres leches sauce.

Prep, time & servings

• Prep time: 15 minutes
• Cook time: 30 minutes
• Total time: 45 minutes
• Servings: 9 squares

Nutrition (per serving)

Calories: 147 kcal; Carbohydrates: 26 g; Protein: 5 g; Fat: 3 g; Fiber: 2 g; Sugar: 12 g. Nutrition information is an approximation.

Photography: Photos in this post were taken by Ashley McGlaughlin from The Edible Perspective.

Recipe by Emily Richter.