Whipped Sweet Potato Brown Butter Crostini Recipe

If you’re looking for a cozy appetizer that’s equal parts elegant and easy, this Whipped Sweet Potato & Brown Butter Crostini is about to become your new go-to. It’s the kind of snack that feels fancy enough for a cocktail party but is easy enough to whip up while the kids do homework at the kitchen table. A little sweet, a little savory, and totally irresistible!

Recipe image

Why You’ll Love This Recipe

This recipe came to life during one of my annual fall dinner parties when I wanted something cozy but still chic. With leftover sweet potatoes and a last-minute baguette, this little dream was born—and now it’s requested every year!

  • Perfectly cozy: Sweet, nutty, and warm—like fall on toast!
  • Make-ahead-friendly: Whip the sweet potato mix up to 3 days in advance.
  • Entertaining-worthy: Looks as beautiful as it tastes.
  • Flexible & forgiving: Easy to riff on with what you have at home.

Ingredients Breakdown

Essentials

  • 1 large sweet potato, peeled and cubed
  • 1 tbsp olive oil
  • Salt and pepper, to taste
  • 4 tbsp unsalted butter
  • 1/2 tsp ground cinnamon
  • 1 tsp maple syrup (optional, for sweetness)
  • 1 baguette, sliced into 1/2-inch slices
  • 1 tbsp olive oil (for brushing crostini)
  • Chopped pecans or walnuts, toasted (for garnish)
  • Fresh thyme or sage leaves, optional garnish

Pro Tips

  • Use a food processor for the smoothest, whipped texture.
  • Roasting the sweet potatoes instead of boiling boosts flavor.
  • Brown butter can be made ahead—store in fridge and gently rewarm.
  • Want a little tang? Add a spoonful of cream cheese to the mix!

Step-by-Step Instructions

  1. Preheat your oven to 400°F (200°C). Toss sweet potato cubes with olive oil, salt, and pepper. Roast on a parchment-lined sheet for 25–30 minutes, until soft and caramelized at the edges.
  2. Meanwhile, make the brown butter: In a small saucepan, melt butter over medium heat. Cook, swirling occasionally, until it turns golden and smells nutty—about 5–7 minutes. Remove from heat.
  3. When sweet potatoes are done, add them to a food processor. Blend with brown butter, cinnamon, and maple syrup (if using) until smooth. Season with more salt, if needed.
  4. Brush baguette slices with olive oil and toast in the oven at 400°F for 8–10 minutes, flipping halfway through, until golden and crisp.
  5. Spoon or pipe the whipped sweet potato onto each crostini. Garnish with toasted nuts and herbs. Serve warm or at room temp!

Chef’s Tips and Tricks

  • Don’t skip browning the butter—it adds a rich, nutty depth to the sweet potatoes.
  • Pre-toast your baguette slices a day ahead and store in an airtight container.
  • If you’re short on time, microwave the sweet potato until fork-tender instead of roasting.
  • Use a piping bag with a star tip for extra wow-factor presentation!

Recipe Variations and Serving Suggestions

  • Add goat cheese to the whipped mixture for creamy tang.
  • Drizzle with hot honey for a spicy-sweet kick.
  • Swap the baguette for endive or apple slices for a gluten-free twist.
  • Serve with a festive cocktail or mulled wine for a holiday starter.

FAQs

Can I make these ahead?

Absolutely! The sweet potato spread can be made up to 3 days in advance—just rewarm slightly before assembling.

What’s the best way to toast nuts?

Pop them in a dry skillet over medium heat for 3–5 minutes, stirring often, until fragrant and golden. Watch closely—they go from toasty to burnt quick!

Can I freeze the whipped sweet potato?

Yes! Store it in an airtight container and freeze for up to 1 month. Thaw overnight in the fridge and stir before using.

Recipe Card

Serving Size: 10–12 crostini
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Ingredients:

  • 1 large sweet potato, peeled and cubed
  • 1 tbsp olive oil
  • Salt and pepper, to taste
  • 4 tbsp unsalted butter
  • 1/2 tsp ground cinnamon
  • 1 tsp maple syrup (optional)
  • 1 baguette, sliced
  • 1 tbsp olive oil (for crostini)
  • Toasted pecans or walnuts, for garnish
  • Fresh thyme or sage leaves, optional

Instructions:

  1. Roast sweet potatoes at 400°F with olive oil, salt, and pepper for 25–30 minutes until tender.
  2. Brown the butter until golden and fragrant.
  3. Blend roasted sweet potatoes with brown butter, cinnamon, and maple syrup (if using).
  4. Toast baguette slices brushed with olive oil until crisp.
  5. Assemble crostini with sweet potato whip and top with nuts and herbs.

Nutrition: ~120 calories per crostini

Did you try it? I’d love to know what you thought! Leave a comment below or tag @thekitchensaid on Instagram—your creations always make my day!

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top