Name: Nut and Potato Roast
Ingredients: 1 large raw potato; 1 cup walnuts; 1-1/2 cup bread cubes; 2 eggs; 1 tablespoon butter; 1 small onion; 1 cup hot water; 1 teaspoon salt; One pint strained tomatoes

Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Nut and Potato Roast

Ovenmedium oven

Time45 minutes

Ingredients

Directions

Make the filling

Grind the walnut meats, onion and raw potato through a vegetable mill and mix with hot water, bread cubes, eggs, butter and salt.
Make a layer in the center of a granite pan, and pour over the hot strained tomatoes.

Bake

Bake in a medium oven uncovered for 45 minutes, basting occasionally with the tomato.
Cover and bake an additional 15 minutes.

Nutrition, whole recipe (rough)

888Calories

27 gProtein

21 gFat

148 gCarbs

Counts 8 of 9 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.

What these numbers assume: 8 portions

Ingredient	Portion assumed	kcal
Flour	1 cup (125g) all-purpose	455
Potato	1 medium (173g) baked	161
Butter	1 tbsp (14g)	102
Egg	1 large egg (50g)	78
Onion	1 medium (110g)	44
Walnut	1 walnut half (4g)	26
Tomato	1 medium (123g)	22
Salt	1 tsp (6g)	0
Water	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.

Recipe from the Recipes Wiki (Fandom).

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.

Potato + oniontop 3% of all pairs

Smell alikemoderate

Cooked together9,023 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Potato + tomatotop 5% of all pairs

Smell alikestrong

Cooked together2,798 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Bread + buttertop 7% of all pairs

Smell alikemoderate

Cooked together27,232 recipes

Shared aroma: delta-decalactone (sweet, creamy).
Onion + tomatotop 8% of all pairs

Smell alikemoderate

Cooked together20,633 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Bread + tomatotop 10% of all pairs

Smell alikemoderate

Cooked together1,013 recipes

Shared aroma: 2-nonenal (fatty, green).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Walnuts: Add body, richness and fat, giving the roast a firm, nutty texture.
Raw potato: Adds moisture and starch that help bind the loaf as it bakes.
Eggs: Set with heat to hold the mixture together in a sliceable form.
Bread cubes: Absorb the liquid and add softness and structure to the mixture.
Butter: Adds fat for richness and a tender crumb.
Strained tomatoes: Provide moisture and acidity, and baste the top for flavor and colour.

Swap the walnut

How well each one fits the dish's main ingredients (potato, bread, egg, butter, onion, tomato):

Beansfits better
Peasfits better
Peanutfits better
Walnutthe original

Fit is the average pairing score against potato, bread, egg, butter, onion, tomato. 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.