Roasted Butternut Squash Crostini Recipe
Here's a really delicious appetizer or light meal when squash is abundant. This Roasted Butternut Squash Crostini Recipe tastes decadent with a tumble of sweet, crispy shallots and sage on top.
Why You'll Love This Recipe
Once upon a time, I made way too much roasted squash, and had a pretty good-sized bowl of leftovers.
Yes, I could have cubed them for a salad with some greens and a little vinaigrette, but since I graduated from the school of Everything Is Better On Toasted Bread, I came up with this recipe for Butternut Squash Crostini, and trust me, it's a keeper.
Here's why you should try this delicious thing:
Lunch, dinner, snacks. Yep, it's all that. This recipe is a great option for any of those occasions.
The squash is warmed, the shallots are crispy, the parmesan shaved. This is a delicious twist on toast.
The sage leaves are quick-fried and optional, but worth seeking out.
Key Ingredients:
Cooked squash: I tested this recipe with Butternut and Acorn squash, and both were outstanding. I think almost any variety would work, really.
Bread: Get a nice round of sourdough or other plain artisan type of bread. Avoid those with extra ingredients like garlic or olives.
Thick, one inch slices is what we're after, drizzled with olive oil and toasted under the broiler for a couple minutes, or until the edges are lightly browned.
Olive Oil: Good quality EVOO adds a lot of flavor you won't get anywhere else.
Parmesan Cheese: Just the perfect flavor for this squash toast. Perfect.
Shallots: Sweet and savory, and pan fried just until the edges are crispy.
Fresh Sage: Yes, get the fresh kind at the grocery store. If you've never tasted sage that's flash fried, well, we really need to change that.
Seasonings: Kosher salt and freshly ground black pepper is all you need to elevate the flavors of this toast.
For the full recipe, please scroll down to the recipe card below.
To prepare the cooked shallots, here's all you do:
Add the sliced shallots and two tablespoons of butter into a large non-stick skillet, single layer with salt and freshly ground pepper.
Cook on medium high heat until they start to sweat, about five minutes.
Add a tiny bit of sugar to the shallots, then lower the heat a bit and continue cooking for about twenty minutes or until golden brown on the edges.
Remove from the pan and set aside until you're ready to assemble the toasts.
For the squash part of this recipe, you're options are:
Roast Your Own: You can bake either acorn or butternut squash on a sheet pan.
Buy It Frozen: Squash usually comes pureed or cubed in the freezer section. Go with cubed, defrost, then smash with the back of a fork in a large bowl before proceeding with the recipe.
When cooking the shallots, start on medium high heat, then go for a lower setting. You have to gently coax onions of any kind to caramelize them. Be sure to slice them thin, and adding a little bit of sugar that the recipe calls for helps this process along.
This recipe calls for two medium shallots. Sometimes there's only small shallots at the grocery store, so be sure to grab several!
Use a plain artisan round loaf for this recipe, not sandwich bread. You'll need the sturdiness of a loaf that's cut an inch thick to stand up to these ingredients and flavors.
Use any variety of cooked squash you'd like, but keep it chunky, not pureed.
Can I use other types of squash in this recipe?
Yes, almost any kind would work. I tested this with both Acorn and Butternut varieties, and both were very good.
How to do I store leftovers?
Just make enough toasts for the amount of people you are serving. If you have leftovers, keep them separate (don't assemble the toasts, the bread will get soggy). Store the cooked squash in an air-tight container in the refrigerator for a couple of days.
Can I leave the sage and onions off this recipe?
You can! But please try them first, they are wonderful and add a lot of flavor to the finished toasts. If you want to try canned crispy onions instead of cooking the shallots, give them a try!
Roasted Butternut Squash Crostini Recipe
Here's a luscious toast with roasted squash, crispy shallots, sage and cheese. Outstanding!
Course: Lunch
Total Time: 30 minutes
Servings: 4
Ingredients
▢ 2 medium Shallots, sliced thin
▢ 2 tablespoons Butter, unsalted
▢ ½ teaspoon Salt
▢ ½ teaspoon Pepper, freshly ground
▢ 1 teaspoon Sugar
▢ 2 cups Butternut Squash, cooked & mashed Can use acorn squash instead.
▢ ¼ cup Water
▢ 4 slices Sourdough Bread, cut in ½" slices
▢ 2 tablespoons Olive Oil Or more
▢ 1 teaspoon Flaky Sea Salt
▢ 2 tablespoons Olive Oil
▢ 8 Fresh Sage Leaves, whole
▢ ¼ cup Parmesan Cheese
▢ Flaky Sea Salt
Instructions
Start by cooking the shallots in two tablespoons of butter with salt and pepper in a medium-sized non stick skillet. Cook on medium-high heat until soft, about five minutes.
Add the sugar and stir and continue cooking on low heat, stirring often for about 15-20 minutes until the shallots are brown on the edges and soft. Remove from skillet and set aside.
Place 2 cups of cooked squash in a medium-sized, non-stick skillet with the ¼ cup of water.
Turn the heat to medium and let the squash heat through until the water is absorbed and the squash is warmed, about 4 minutes.
Drizzle or brush the olive oil over the four slices of sourdough bread and sprinkle each with a pinch of salt.
Place the bread on a sheet pan lined with parchment paper and toast the bread in your broiler on the middle rack of the oven until crispy and slightly brown around the edges. Set aside to prepare the fried sage.
Using the same pan as the shallots, add two tablespoons of olive oil to the pan on medium heat, and just as the oil heats up, add the sage, frying it until bubbling and crispy, gently turning them over once with a fork about 2-3 minutes total.
Remove from oil and gently place on paper towels to drain any excess oil.
To assemble the toasts, place about a half-cup of warmed squash on top of each warmed piece of toast, followed by a generous tablespoon of caramelized shallots, a good sprinkle of parmesan cheese and a couple of the fried sage leaves.
Drizzle each toast with a little olive oil and a pinch of flake sea salt before serving.
Notes
When cooking the shallots, use a low stove setting, and slice the shallots thin. The small amount of sugar in the recipe will help them crisp up on the edges.
This recipe calls for two medium shallots. Sometimes there’s only small shallots available at the store, so double it and get four.
Use a plain artisan round loaf for this recipe, not sandwich bread. You’ll need the sturdiness of a loaf that’s been cut an inch thick to stand up to these ingredients and flavors.
Use any variety of cooked squash you’d like, be sure to keep it chunky, not pureed.