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Brown Butter Radish Crostini Recipe

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★★★★★

4.9 from 98 reviews

Brown Butter Radish Crostini is a delightful appetizer featuring thinly sliced radishes on toasted baguette slices generously spread with nutty, whipped brown butter. Topped with fresh thyme, flaky sea salt, and a squeeze of lemon, this simple yet elegant crostini offers a perfect balance of rich, creamy, tangy, and crisp textures and flavors.

Ingredients

Scale

For the Brown Butter

  • 1/2 cup (1 stick) butter
  • 1/2 teaspoon kosher salt

For the Crostini

  • 1 baguette, sliced into 1-inch pieces
  • 12 small red radishes, sliced very thin (preferably on a mandoline)
  • Freshly ground black pepper, to taste
  • Flaky sea salt, for serving
  • Fresh thyme leaves, for serving
  • 1/4 lemon, for serving

Other

  • Ice
  • Water

Instructions

  1. Prepare ice water bath: Fill a large bowl halfway with ice water, then nest a medium bowl inside it. Ensure that the medium bowl remains completely dry and that the water level reaches a few inches below the top of the medium bowl. This setup will help cool the brown butter quickly after cooking.
  2. Make brown butter: In a small saucepan over medium heat, melt the butter. Lower the heat to medium-low and continue cooking, stirring frequently. Watch closely as the butter develops a nutty aroma and the milk solids turn golden brown, usually about 5 minutes.
  3. Whisk brown butter: Carefully transfer the hot butter to the prepared medium bowl in the ice water bath. Add the kosher salt and whisk constantly until the butter thickens into a whipped texture and lightens in color. This should take around 3 minutes.
  4. Toast the bread: Move your oven rack to the top position and preheat your broiler. Lay the baguette slices in a single layer on a baking sheet. Broil the slices for about 1 minute until lightly golden on one side, then flip each slice and broil until golden on the other side. Keep a close eye to prevent burning.
  5. Assemble crostini: Spread a generous amount of the whipped brown butter onto each toasted baguette slice. Season each with freshly ground black pepper. Arrange thin radish slices over the buttered bread, then sprinkle with flaky sea salt and fresh thyme leaves. Finish with a squeeze of lemon juice to add brightness. Serve immediately.

Notes

  • Use a mandoline slicer for uniformly thin radish slices that enhance texture and presentation.
  • The ice water bath helps the brown butter solidify slightly and develop a creamy, whipped consistency.
  • Broil the bread close to the heating element and watch carefully to avoid burning.
  • Fresh thyme adds an herbal note that complements the nuttiness of the butter and sharpness of the radishes.
  • Serve these crostini immediately for the best texture and flavor.

Keywords: Brown Butter, Radish, Crostini, Appetizer, French, Easy, Whipped Butter, Toasted Bread, Fresh Thyme, Lemon

Find it online: https://zestywithzane.com/brown-butter-radish-crostini-recipe/