Chewy Brown Butter Oatmeal Creme Pie Bars
Chewy Brown Butter Oatmeal Creme Pie Bars

Chewy Brown Butter Oatmeal Creme Pie Bars

5 from 1 reviews
Chewy Brown Butter Oatmeal Creme Bars
Prep time
Cook time
Total time
If you love Oatmeal Creme Pie sandwich cookies, these bars are for you. They're better than the boxed kind, since they're fresh out of the oven with spices bloomed in brown butter for added nuttiness and flavor. This recipe makes a bit more frosting than you might end up using, but I decided to keep the full recipe below since it's so delicious.
Serves: 9-12
Bar Ingredients:
  • 3/4 teaspoon cinnamon
  • 1/4 teaspoon nutmeg
  • 1/8 teaspoon cloves
  • 1/2 cup unsalted Plugrá butter
  • 1 large egg
  • 1 cup light brown sugar
  • 2 tablespoons unsulphered molasses
  • 1 tablespoon vanilla extract
  • 1/2 teaspoon salt
  • 1 cup quick-cooking oats
  • 3/4 cup all-purpose flour
Cream Ingredients:
  • 1/2 cup unsalted Plugrá butter, softened
  • 1 1/2 cups powdered sugar
  • one 7-ounce jar marshmallow creme
  • 1/2 teaspoon vanilla extract
  • 1/2 teaspoon salt
  1. Brown the butter and bloom the spices: Measure the cinnamon, nutmeg, and cloves into one small prep bowl so they’re ready. Melt the butter over medium heat in a small, heavy saucepan. Turn the heat up to medium-high, swirling the butter and scraping the bottom of the saucepan with a wooden spoon as it browns. When it’s brown (but before it burns — don’t take your eyes off of it!), remove it from the heat and add in the spices, swirling to mix. Pour the spiced butter out into a large mixing bowl and set it aside to cool to room temperature.
  2. Preheat the oven to 350 degrees F. Prepare an 8-inch square baking pan with a parchment paper sling and spray it lightly with cooking spray. Whisk the egg, brown sugar, molasses, vanilla, and salt into the brown butter. Stir in the oats and then stir in the flour until just combined. Pour the mixture into your prepared baking pan and smooth out the top. Bake it for 24-25 minutes or until a toothpick inserted into the center of the bars comes out with just a few moist crumbs. Let the bars cool completely.
  3. To make the cream, whip the butter until fluffy. Cream in the powdered sugar for 2-3 minutes. Add the jar of marshmallow creme, vanilla extract, and salt and beat until combined and fluffy. Frost the bars with about half of the frosting using the back of a spoon and cut into squares to serve with extra frosting alongside to add if desired. Store in an airtight container.


17 Comments on Brown Butter Oatmeal Creme Pie Bars

  1. Anton
    November 8, 2015 at 9:25 pm (5 years ago)

    I’m that weird person who enjoys the early dark, and the cold. It makes me feel good somehow. I love being able to wear long sleeves, and the cold cold days with bright sunlight and wind. Also, everyone spiced with cinnamon and cloves.

  2. Liz @ I Heart Vegetables
    November 9, 2015 at 7:54 am (5 years ago)

    My favorite part of winter is getting to see so many friends and family members from out of town!! 🙂 These oatmeal creme pie bars definitely remind me of spending time at my grandparents house 🙂

  3. Marietta
    November 9, 2015 at 8:25 am (5 years ago)

    I love to ride around after a winter storm and look at the “winter wonderland”. Sometimes I get out my camera and take some pictures for my southern friends. And, of course, hot coffee and good movies!

  4. Gunn Iren Müller
    November 9, 2015 at 8:53 am (5 years ago)

    Looks great! Is there a say to make marshmallow cream from scratch? I can’t but IT here.

  5. Taylor @ Food Faith Fitness
    November 9, 2015 at 9:51 am (5 years ago)

    I haven’t eaten breakfast yet…and now I know why. I was subconsciously hoping to have these! They look amazing. I just tried Plugra over the weekend and now I am obsessed! Pinned!

  6. Deborah
    November 9, 2015 at 12:52 pm (5 years ago)

    Well, I’m not a winter fan at all – which is a shame because I live in Utah! But I could definitely use a batch of these to get me through the winter!

  7. Jane S
    November 9, 2015 at 6:10 pm (5 years ago)

    Well, I hate cold weather… but I do love soup! And I make a lot of it in the winter! These bars love wonderful, Julie. Can’t wait to try them!

  8. Juli
    November 10, 2015 at 6:33 am (5 years ago)

    I love going to bed early in a bed made up with flannel sheets and a big, fluffy comforter.

  9. Amanda
    November 10, 2015 at 10:11 am (5 years ago)

    I love the food that comes along with winter, but I also love to be curled up in a chair with coffee and a good book, while it snows outside. Perfect! These bars look so amazing! That frosting looks hard to resist!

  10. Lori @ RecipeGirl
    November 10, 2015 at 7:28 pm (5 years ago)

    These amazing dessert bars are going on my fall baking list! So delicious!

  11. Joanna
    November 10, 2015 at 8:53 pm (5 years ago)

    Since we live in the South Pacific most of the time, coming back to cooler weather is delightful! Drinking hot chocolate, being able to warm my cold toes on my husband, snuggling under blankets while reading books with my kids, lighting candles when the dusk steals in each afternoon, all of these things make me smile. And now these oatmeal bars are another reason to smile 🙂

  12. Amy | Club Narwhal
    November 11, 2015 at 11:48 am (5 years ago)

    Oh man, I live in Michigan and still don’t think I’ll ever be a winter person (growing up in CA will do that to a girl ;). However, the first snow fall is kind of divine, as are cozy winter foods!

  13. Jenni
    November 13, 2015 at 7:55 am (5 years ago)

    YUM! These bars look so amazing – that marshmallow cream just seals the deal!
    I love big chunky warm sweaters, snuggling up in blankets to read a book, and drinking hot drinks all day long!

  14. Brianne @ Cupcakes & Kale Chips
    November 14, 2015 at 8:54 am (5 years ago)

    Too much frosting? No such thing! I love that cold weather means I can feel totally justified staying in my pajamas inside my house all day!

  15. Julie m.
    November 17, 2015 at 7:03 pm (5 years ago)

    I love the winter holidays! Yummy food, family gatherings and fun tours of Christmas lights. This time of year is my favorite for sure. ???? These bars look incredible. Beautiful recipe Julie.


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