Why it works: Peanut and coconut match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 433 recipes. Both carry decanal, which smells soap, orange peel. The science ↓
Fudge-Filled Peanut Butter Bars
Ingredients
Directions
Make the base
Combine cake mix, peanut butter, butter, and eggs.
Stir until well mixed.
Press 2/3 of the mixture into a 9 x 13-inch pan.
Reserve the remaining mixture for topping.
Make the filling
Combine chocolate chips, condensed milk, and butter in a saucepan.
Melt over low heat, stirring until smooth.
Remove from heat.
Stir in frosting mix.
Spread the mixture over the dough in the pan.
Bake and serve
Crumble the reserved dough over the filling.
Bake at 350°F for 20 to 25 minutes.
Cool before cutting into bars.
Nutrition, whole recipe (rough)
Counts 7 of 8 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 7 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Coconut | 1/2 cup shredded (40g) | 283 |
| Peanut | 1 oz (28g) | 161 |
| Chocolate | 1 oz (28g) semisweet | 155 |
| Milk | 1 cup (244ml) whole | 149 |
| Butter | 1 tbsp (14g) | 102 |
| Egg | 1 large egg (50g) | 78 |
| Pecan | 1 half (4g) | 20 |
| Cake | not in our table | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
Steps grouped into stages for easier reading; the method is the source's own.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
-
Peanut + coconuttop 3% of all pairsSmell alikestrongCooked together433 recipes
Shared aroma: decanal (soap, orange peel).
-
Peanut + chocolatetop 6% of all pairsSmell alikemoderateCooked together1,279 recipes
Shared aroma: 2-ethyl-3,6-dimethylpyrazine (roasted, nutty).
-
Chocolate + coconuttop 9% of all pairsSmell alikemoderateCooked together1,107 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
-
Butter + coconuttop 12% of all pairsSmell alikemoderateCooked together3,467 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Chocolate + condensed milktop 12% of all pairsSmell alikelowCooked together541 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Yellow cake mix
- Forms the tender, cake-like base of the bars.
- Peanut butter
- Adds fat and rich peanut flavor to the base.
- Eggs
- Bind the base and help it set as it bakes.
- Chocolate chips
- Melt into the sweetened condensed milk to form the fudgy layer.
- Sweetened condensed milk
- Adds sweetness and moisture, helping the filling turn fudgy.
The step that matters
Melt the chocolate filling gently over low heat. Chocolate and condensed milk can scorch or seize if overheated. Low heat, with steady stirring, melts the chips evenly into a smooth, glossy fudge.
Swap the peanut
How well each one fits the dish's main ingredients (butter, egg, chocolate, condensed milk, coconut):
- Almondfits about as well
- Pecansfits about as well
- Peanutthe original
- Macadamia nutfits about as well
Fit is the average pairing score against butter, egg, chocolate, condensed milk, coconut. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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