Betty's Crunchy Brownie Bars

"A goodie Betty shared with the group at our annual rughooking retreat. Recipe originally came from the back of a Duncan Hines brownie box, but she decided she liked a Betty Crocker boxed brownie mix better. Cook time does not include time to cool. I thought the oatmeal layer might detract from the brownie, but it was a wonderful compliment."
photo by Sharlene~W photo by Sharlene~W
photo by Sharlene~W
Ready In:
1hr 5mins
24 large brownies


  • Crunchy Layer

  • 34 cup flour, sifted
  • 14 teaspoon baking soda
  • 14 teaspoon salt
  • 1 12 cups quick-cooking rolled oats
  • 34 cup brown sugar
  • 34 cup butter, melted
  • Brownie Layer

  • 1 (21 1/4 ounce) package brownie mix (Betty Crocker Hershey's Triple Chunk Supreme)
  • 3 tablespoons water
  • 12 cup vegetable oil
  • 2 eggs
  • Frosting

  • 1 12 unsweetened chocolate squares (1 1/2 ounces)
  • 3 tablespoons butter or 3 tablespoons margarine
  • 2 14 cups confectioners' sugar, sift if lumpy
  • 1 12 teaspoons vanilla
  • 3 tablespoons hot water


  • For crunchy layer, combine flour, soda and salt; stir in oats and brown sugar.
  • Add the 3/4 cups melted butter and pat mixture in bottom of an ungreased 13 x 9-inch baking pan.
  • Bake at 350°F for 5 minutes; at this time it will not be completely baked.
  • While bottom layer is in the oven, prepare brownies as directed on package.
  • Spread batter in pan over crunchy layer.
  • Return to oven and bake for approximately 25-30 minutes until done (do not over bake).
  • Prepare frosting when brownies are cool.
  • In a small saucepan melt together chocolate and the 3 tablespoons butter.
  • Remove from heat; immediately add confectioners' sugar, vanilla and 2 tablespoons hot water.
  • Stir until smooth; add remaining tablespoon hot water to make a soft, pourable consistency.
  • Spread over brownies while frosting is still hot; let set until firm.
  • Cut into bars.

Questions & Replies

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  1. Susie D
    Excellent! These are rich, delicious, and easy. They slice cleanly so look pretty served on a tray or right out of the pan. I ended up cutting them a little larger than bite size for a dessert tray of asst bar cookies. Thank you for sharing a recipe I will use again!
  2. Dawn F.
    Thanks for sharing this recipe. This recipe is a nice change from the same old brownie.
  3. Lovellama
    These are a nice, more-than-the-sum-of-its-parts dessert to have at home to take to someone's house. I used a jarred frosting that I wasn't too happy with; the next time I make these I will use a homemade frosting. And maybe some toasted coconut in the oatmeal layer!
  4. Chachie
    Awesome brownie recipe. I love the crunchy layer. I skipped the frosting and used store brand brownie mix . Goes great with a scoop of vanilla ice cream or a cold glass of milk:) Thanks for the posting
  5. diner524
    Nice change to brownies by adding the oatmeal layer. Very rich tasty brownies.


I live in the San Francisco area and love it here. I discovered Recipezaar (then Kitchen) in 2001 and have been so happy to have my favorite recipes stored safely here. I am mother to 7 and grandmother to 7. I love to knit, smock, sew, etc., but my favorite hobby of the moment is traditional rug hooking. This is a sample of what I do.? It's called "November".? I dyed most of the wool myself. It is made from wool flannel, cut into strips a little less than 1/4" and then worked into a linen backing. This is my 3rd rug.
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