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Microwave Oatmeal Bars

My mother shared this speedy recipe with me. There are not a lot of ingredients, so these chewy treats are easy to fix in the microwave. —Annette Self, Junction City, Ohio
  • Total Time
    Prep: 20 min. + chilling
  • Makes
    10 servings


  • 2 cups quick-cooking oats
  • 1/2 cup packed brown sugar
  • 1/2 cup butter, melted
  • 1/4 cup corn syrup
  • 1 cup semisweet chocolate chips


  • In a large bowl, combine oats and brown sugar. Stir in butter and corn syrup. Press into a greased 9-in. square microwave-safe dish.
  • Microwave, uncovered, on high for 1-1/2 minutes. Rotate a half turn; microwave 1-1/2 minutes longer. Sprinkle with chocolate chips. Microwave at 30% power for 4-1/2 minutes or until chips are glossy; spread chocolate evenly over top.
  • Refrigerate 15-20 minutes before cutting.
Editor's Note
This recipe was tested in a 1,100-watt microwave.
Nutrition Facts
1 piece: 287 calories, 15g fat (9g saturated fat), 25mg cholesterol, 109mg sodium, 38g carbohydrate (24g sugars, 3g fiber), 3g protein.

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Average Rating:
  • Stephen
    Jul 22, 2020

    It worked until I tried to even out the chocolate. Smelled good to. I would melt the chocolate in a different dish and pour it on.

  • DDPLoeches
    May 8, 2020

    Apparently all microwaves are not created equal! The largest square dish I have (8-inch, I think) won't turn on my microwave's turntable, so I used a 9.5-inch pie plate. I cooked mine longer than the two 1-and-a-half minute times, and it kept making wonky patterns in the oat layer, puffing up in certain areas. I still don't know if I got it done or not. I put the chips on the top and turned the power down and let it run for about 3 minutes, and when I came back, the top looked marbled; about half the chips had sunk under the oat layer. I wonder how they'd do in a regular oven... They look funny, but they taste pretty good. At least while they're warm, my son says they taste a little like no-bake cookies. We'll see how they are once they set up more.

  • iambevo24
    Jun 27, 2019

    No comment left

  • DeliciouslyResourceful_Gina
    Mar 19, 2017

    Fabulous and easy! They need much longer than 15 min to set up in the fridge though.

  • wendykins
    Sep 13, 2015

    Delicious and easy!

  • kewellman
    Jun 4, 2015

    Super easy to make and quite delicious. I added cinnamon chips, nutmeg, and cloves to boost the flavor. They smelled and tasted like Christmas :)

  • tastemag
    Apr 12, 2013

    No comment left

  • Galapagos
    Apr 11, 2013

    This recipe couldn't have been any easier to make. My microwave is a newer model so it only took 3 minutes to melt the chocolate chips. This is great for a last minute desert. I stuck mine in the freezer for a few minutes so we could try them out sooner. Will definitely make again! And I may try some Peanut butter in between the cooked oatmeal and chips nest time.

  • deana2431
    Apr 10, 2013

    Only thing is, the recipe didn't say best way to store them, if you keep them in fridge, you have to let them come to room temp to slice easier

  • deana2431
    Apr 10, 2013

    This was so easy to make and everyone loved it!, half the dish was eaten rightup!, cooked it for a little less and also had added some peanut butter to the mix, tasted like a chewy pb chocolate granola bar!