# Perfect Avocado Toast

Avocado toast is crunchy bread topped with creamy, lemony avocado and a little salt and heat. It is quick, filling and takes just 10 minutes.

Great avocado toast depends on three things: ripe fruit, well-toasted bread and enough salt.

- Total time: 10 min (prep 5 min, cook 5 min)
- Serves: 2
- Per serving (estimated): 340 kcal, 9 g protein
- Cuisine: American. Category: Breakfast. Diet: vegetarian, dairy-free.

## Ingredients

- 2 thick slices sourdough or whole grain bread
- 1 large ripe avocado
- 1 tsp lemon juice
- 1 tbsp extra virgin olive oil
- 1/4 tsp flaky sea salt
- 1 pinch red pepper flakes
- 1 small garlic clove, halved
- 2 eggs, optional
- 1 tsp sesame seeds, optional

## Method

1. Toast the bread until deeply golden and crisp, 3 to 4 minutes, so it can hold the topping without turning soggy.
2. Rub the cut side of the garlic clove lightly over each warm slice, then discard the garlic.
3. Halve the avocado and scoop the flesh into a bowl. It should yield to gentle pressure.
4. Add the lemon juice and a pinch of salt and mash with a fork, leaving some chunks for texture.
5. Spread the avocado thickly over the toast, all the way to the edges.
6. If using eggs, fry them in a nonstick pan over medium-low heat for 3 minutes until the whites are set and the yolk is runny, then place on top.
7. Drizzle with olive oil and sprinkle with flaky salt, red pepper flakes and sesame seeds. Serve right away.

## Why it works

- Toasting the bread deeply dries and crisps the crumb, so it does not go soggy under the avocado.
- Rubbing raw garlic on warm toast adds a gentle aroma without the harshness of chopped raw garlic.
- Lemon juice adds brightness that balances the rich, fatty avocado.
- Mashing the avocado with salt means every bite is seasoned, not just the surface.
- Finishing with olive oil and flaky salt adds a fruity note and a pop of crunch.

## The science

- **Why avocado browns.** When avocado flesh meets air, an enzyme called polyphenol oxidase reacts with phenols and turns them brown. Acid slows the enzyme, which is why lemon or lime juice helps. Covering the surface tightly keeps oxygen away.
- **Fat carries flavor.** Many flavor compounds in olive oil, chili and garlic dissolve in fat, not water. The creamy fat in avocado spreads those flavors across your tongue and makes the toast taste fuller and more balanced than plain bread.

## Tips

- Choose an avocado that gives slightly when pressed and has a bit of green under the stem.
- Season the avocado, not just the top, so every bite tastes right.
- Eat it right away; mashed avocado starts to brown within 30 minutes.

## Mistakes to avoid

- Using an underripe avocado makes the toast hard and bland, so wait until it gives gently.
- Using soft untoasted bread makes the toast soggy, so toast it until crisp.
- Under-salting makes the toast taste flat, so season well and finish with flaky salt.

## Variations and swaps

- Top with cherry tomatoes, basil and a drizzle of balsamic.
- Add smoked salmon, thin red onion and capers.
- Add feta, lemon zest and a drizzle of hot honey.
- Swap sourdough for a seeded whole grain loaf for more fiber and chew.
- Swap lemon juice for lime juice for a brighter, slightly more tropical taste.
- Swap the egg for chickpeas, lightly mashed with lemon, for a vegan, high-protein version.

## Storage

Avocado toast is best eaten at once. Keep leftover mashed avocado in a sealed container with lemon juice and plastic pressed on its surface for up to 1 day in the fridge.

## FAQ

**How do I keep avocado toast from getting soggy?**

Toast the bread until crisp and spread the avocado right before eating. A crisp, dry slice holds up much longer than a lightly toasted one.

**How do I tell if an avocado is ripe?**

A ripe avocado gives slightly under gentle pressure and the small stem cap comes off easily with green underneath. Brown under the cap means it is overripe.

**How do I stop avocado from turning brown?**

Mix in lemon or lime juice and press plastic wrap directly onto the surface. This limits air contact and slows the browning enzyme.

**What bread is best for avocado toast?**

Sturdy bread with a firm crust, such as sourdough, whole grain or country loaf, works best. Slice it at least 1/2 inch thick.

**Can I make avocado toast ahead?**

It is best made fresh. You can toast the bread and mash the avocado with lemon juice a few minutes ahead, then assemble just before eating.

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Source: https://cookingscientist.com/recipes/avocado-toast (Cooking Scientist). Learn the science of cooking in the Cooking Scientist app for iPhone and iPad: https://apps.apple.com/app/id6830326846