Why it works: Sauce and ketchup match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,099 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Mom's Meatloaf
Ingredients
Directions
Prepare
Crush a handful of salted crackers in a zip-lock bag.
Season the ground meat with salt and seasoned salt in a bowl.
Sprinkle the crushed cracker crumbs over the seasoned meat.
Mix the meat and cracker crumbs together by hand.
Add about half of the tomato sauce and mix again by hand.
Assemble and bake
Place the meat mixture in a pan and flatten it slightly.
Pour the remaining tomato sauce over the top, ensuring it covers the entire surface.
Top with a couple of squirts of ketchup, covering the entire top.
Bake at 350°F for about 45 minutes to 1 hour.
Nutrition, whole recipe (rough)
What these numbers assume: 3 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Flour | 1 cup (125g) all-purpose | 455 |
| Tomato | 1 medium (123g) | 22 |
| Salt | 1 tsp (6g) | 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.
-
Sauce + ketchuptop 1% of all pairsSmell alikestrongCooked together1,099 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Tomato + saucetop 15% of all pairsSmell alikelowCooked together5,469 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Tomato + ketchuptop 22% of all pairsSmell alikelowCooked together754 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
- Ground chuck or ground round
- Provides the protein and fat that form the body and juiciness of the loaf.
- Salted crackers
- Crumbs absorb meat juices and fat, keeping the loaf tender and moist.
- Tomato sauce
- Adds moisture and acidity, and its sugars help the top brown as it bakes.
- Ketchup
- Forms a sweet, tangy glaze on the surface as it bakes.
The step that matters
Mixing the meat and crumbs by hand. Mixing just until combined keeps the texture tender. Overworking ground meat binds the proteins tightly, making the loaf dense and firm.
Swap the tomato
How well each one fits the dish's main ingredients (sauce, ketchup):
- Horseradishfits better
- Capsicumfits better
- Shallotfits better
- Tomatothe original
Fit is the average pairing score against sauce, ketchup. 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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