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Dulce de Leche Oatmeal Bars

These Dulce de Leche Oatmeal Bars are great to make when you want something fancy, but easy. They have two oatmeal layers, sandwiching a Dulce de Leche layer, which makes for the most amazing texture to sink your teeth into. They are one of our favorite desserts!
Course Dessert
Cuisine Mexican
Prep Time 20 minutes
Cook Time 25 minutes
Total Time 45 minutes
Servings 15
Author Sarah


  • 2 cups light brown sugar softened
  • 1 cup {2 sticks} butter {I use salted}
  • 2 large eggs
  • 1/3 cup milk {I use 1%}
  • 2 tsp. vanilla
  • 1 tsp. salt
  • 1 tsp. baking soda
  • 2 & 1/2 cups all-purpose flour
  • 3 cups old-fashioned oats
  • 2 {14 oz.} cans Dulce de Leche {Found in the Hispanic or baking aisle of most grocery stores}


  1. Preheat oven to 350ºF and grease a 9x13 inch baking pan.
  2. Cream the sugar and butter together until light and fluffy.
  3. Add the eggs, one at a time, and mix thoroughly. Scrape down sides as needed.
  4. Mix in milk and vanilla.
  5. In a medium bowl, combine salt, baking soda, flour, and oats.
  6. Add the dry mixture to the wet mixture, 1/2 cup at a time.
  7. Press 2/3 of the cookie dough into the prepared pan.
  8. Transfer the Dulce de Leche to a medium, microwave-safe bowl and microwave on high for 60 seconds, stirring every 15 seconds.
  9. Spread the Dulce de Leche over the cookie dough in the pan. Top with spoonfuls of the remaining cookie dough. {There won't be enough dough to cover the entire pan, but after it's cooked, it will look nice and pretty with the Dulce de Leche peeking through.}
  10. Bake for 25 minutes, checking at about the 20 minute mark. If it's getting to browned by then, place some aluminum foil over the top of it.
  11. Let cool completely before serving, to let the insides firm up. {It tastes better completely cooled, too. The Dulce de Leche is a lot sweeter.}