Why it works: Lemon and pepper match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Spinach Tortilla
Ingredients
Directions
Prepare the filling
Sprinkle lemon juice over the spinach.
Season the spinach with pepper and coarse sea salt.
Fry the spinach lightly in the butter.
Make the tortilla
Beat the eggs.
Pour the beaten eggs into the spinach mixture.
Let the tortilla set.
Turn the tortilla using a plate to cook the other side.
Serve
Serve hot.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
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.
-
Lemon + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Spinach + lemontop 6% of all pairsSmell alikestrongCooked together1,109 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
-
Spinach + peppertop 6% of all pairsSmell alikemoderateCooked together3,400 recipes
Shared aroma: nonanal (fat, citrus).
-
Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set when heated to bind the spinach and form the tortilla's body.
- Butter
- Adds richness and carries heat so the spinach fries lightly without sticking.
- Spinach
- Provides the green filling, with moisture that the eggs set around.
The step that matters
Turn the tortilla using a plate to cook the other side. Once the egg is partly set, a flat plate lets you flip the tortilla whole. Turning too early can tear it, while waiting until the top is mostly set keeps the shape intact.
Swap the spinach
How well each one fits the dish's main ingredients (egg, butter, lemon, pepper):
- Asparagusfits about as well
- Capsicumfits about as well
- Spinachthe original
- Shallotfits about as well
Fit is the average pairing score against egg, butter, lemon, pepper. 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Lemon Sauce236 recipes
Spinach Soup50 recipes
Cream of Spinach29 recipes
Creamed Spinach Soup19 recipes