Crostini are small, toasted slices of bread, typically brushed with olive oil and baked or grilled until crisp. They are the classic Italian base for a wide range of toppings, from simple tomatoes and basil to creamy spreads and cured meats. This recipe article focuses on the nutrition facts of basic crostini (the bread component) and provides a straightforward method for making them at home, along with tips for lighter and more nutrient-dense variations.
Ingredients
- 1 baguette (about 12 oz / 340 g), cut into 24 slices, 1/2-inch (1.25 cm) thick
- 3 tablespoons (45 ml) extra-virgin olive oil
- 1 garlic clove, halved (optional, for rubbing)
- 1/2 teaspoon flaky sea salt (optional)
Instructions
- Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper.
- Arrange the baguette slices in a single layer on the prepared baking sheet. Using a pastry brush, lightly brush the top of each slice with olive oil. Flip the slices and brush the other side as well.
- Bake for 5 minutes, then flip each slice and bake for another 3–5 minutes, until the edges are golden brown and the surface feels dry and crisp. Watch closely to avoid burning, as ovens vary.
- Remove from the oven and, if using, immediately rub the cut side of the garlic clove over the warm crostini for a subtle garlic flavor. Sprinkle with flaky sea salt, if desired.
- Let the crostini cool completely on the baking sheet. They will crisp up further as they cool.
Tips
- Bread choice: A traditional baguette works best, but you can use a sourdough or whole-grain loaf. Whole-grain crostini will have more fiber and a slightly nuttier flavor. Avoid sandwich bread, which is too soft and won’t crisp well.
- Oil control: Use a brush or spray bottle to apply olive oil evenly. Drizzling can lead to soggy spots and adds more calories than you might intend. If you prefer less oil, you can omit it entirely, but the texture will be drier and less golden.
- Even slices: Cut the baguette on a slight diagonal to get larger, more oval-shaped crostini. Keeping the slices uniform ensures even baking.
- Common mistake: Overcrowding the baking sheet traps steam and prevents crisping. Bake in batches if necessary, and always use a single layer.
Serving Suggestions
Crostini are incredibly versatile. Serve them as an appetizer with a variety of toppings, such as:
- Diced tomatoes with fresh basil, garlic, and a drizzle of balsamic glaze.
- Mashed avocado with lemon juice, salt, and a sprinkle of chili flakes.
- Ricotta cheese with a drizzle of honey and cracked black pepper.
- Sauteed mushrooms with thyme and a touch of cream.
- Chicken liver pâté or a simple white bean puree.
Arrange the crostini on a platter and let guests top them themselves to prevent sogginess.
Variations
- Herb crostini: Mix 1 teaspoon of dried oregano, rosemary, or thyme into the olive oil before brushing.
- Cheese crostini: After baking, sprinkle with grated Parmesan or pecorino and return to the oven for 1–2 minutes, until melted.
- Gluten-free: Use a gluten-free baguette or sliced gluten-free bread; adjust baking time as needed, as gluten-free breads often crisp faster.
- Grilled crostini: Instead of baking, grill the bread slices on a cast-iron grill pan or outdoor grill over medium heat for 1–2 minutes per side, until charred and crisp.
Storage and Reheating
Store cooled crostini in an airtight container at room temperature for up to 3 days. They will lose some crispness over time but can be refreshed by placing them in a 350°F (175°C) oven for 3–5 minutes until warm and crunchy. Do not refrigerate crostini, as moisture will make them stale and soft. If you have already topped them, they are best eaten immediately; leftover topped crostini should be refrigerated and consumed within 24 hours, but the bread will become soggy.
Frequently Asked Questions
How many calories are in a plain crostini?
One plain crostini (a 1/2-inch slice of baguette brushed with about 1/2 teaspoon of olive oil) contains roughly 40–50 calories. The exact number depends on the bread’s thickness and how much oil is absorbed. A 1-ounce (28 g) slice of baguette has about 80 calories, and 1 teaspoon of olive oil adds about 40 calories.
Are crostini healthy?
Crostini can be part of a balanced diet, especially when made with whole-grain bread and healthy toppings like vegetables, lean proteins, or legumes. They are relatively low in calories compared to many other appetizers, but the olive oil and any high-fat toppings (like cheese or cured meats) will increase the calorie and fat content.
What is the difference between crostini and bruschetta?
Both are Italian toasted bread appetizers, but crostini are typically smaller, thinner, and brushed with oil, while bruschetta is larger, thicker, and often grilled. Crostini are usually served with a spread or topping, while bruschetta is frequently topped with tomatoes and basil.
Can I make crostini ahead of time?
Yes, you can bake the crostini up to 3 days in advance and store them in an airtight container at room temperature. Re-crisp them in the oven before serving. However, do not add toppings until just before serving to avoid sogginess.
How do I keep crostini crispy?
The key is to ensure they are completely dry after baking. Let them cool fully before storing, and keep them in a container with a loose-fitting lid (not completely sealed) to allow any residual moisture to escape. If they soften, re-toast them in the oven.
Can I freeze crostini?
Yes, baked and cooled crostini can be frozen in a zip-top bag for up to 1 month. Thaw at room temperature and re-crisp in a 350°F (175°C) oven for 5 minutes. Freezing is a great way to use leftover baguette.
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