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'Not Nanaimo Bar' Squares

Rated as 5 out of 5 Stars

"Growing up for some reason we referred to these as 'Oh Henry Squares'. I've no idea why, but I have not served them without people requesting the recipe and rave reviews. I don't know the origin. It's just been passed on through my family."
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50 m servings 219
Original recipe yields 20 servings (20 bars)


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  1. Grease an 8x8-inch square pan.
  2. Cook and stir peanut butter, brown sugar, and corn syrup together in a large pot over medium heat just until warm and well blended, about 3 minutes; remove from heat. Stir cornflakes cereal and crispy rice cereal into peanut butter mixture; press cereal mixture evenly into the prepared pan.
  3. Whisk confectioners' sugar and custard powder together in a bowl. Whisk 1/2 cup melted margarine gradually into custard mixture. Stir warm water into custard mixture to moisten to a spreadable consistency; spread evenly over cereal mixture.
  4. Melt chocolate with remaining 2 tablespoons margarine in a microwave-safe bowl, about 1 minute. Pour chocolate mixture over custard layer. Refrigerate cookies until chocolate is hardened, about 30 minutes; cut into 1-inch squares.


  • Cook's Note:
  • Can be made gluten-free by simply substituting both cereals with gluten-free versions.

Nutrition Facts

Per Serving: 219 calories; 10.6 31.3 2.4 0 132 Full nutrition

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Read all reviews 2
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Yum!! I give these an easy 5 star! Very tasty. I don't think they will last long in my freezer. Lol. I think I cooked the base ingredients a bit too long as it turned out quite chewy. I lik...

super easy and tasty. I reduced the amount of margarine in the custard layer and added water a bit at a time.