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Caramelized Bacon Bites on a white plate with white paper napkins.
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5 from 3 votes

Bacon & Onion Crostini Recipe

If you are looking for am addictive, tasty bacon appetizer that is loaded with flavor this is The Best Bacon Appetizer Recipe we've made in years! This unique crostini appetizer produces a really upscale appetizer guests will love.
Prep Time30 minutes
Total Time30 minutes
Course: Appetizer
Cuisine: American
Keyword: bacon & onion appetizer, bacon appetizer, Caramelized Bacon appetizer, caramelized onion bacon appetizer
Servings: 25 bites
Calories: 272cal
Author: Amy Desrosiers
Cost: $9


  • large baking sheet x2
  • wire rack
  • cutting board
  • knife
  • tablespoon
  • large skillet
  • Wooden Spoon


  • 1 pound homestyle bacon baked, chopped *see instructions
  • 2 large Vidalia onions sliced into 1/4" rings
  • 3 tablespoons butter
  • 1 tablespoon granulated sugar
  • 2 tablespoons balsamic vinegar
  • 1/8 teaspoon salt
  • 1 pound ciabatta bread cut into 1/4" discs
  • 16 ounces ricotta cheese
  • 1/2 cup slivered almonds


  • You can cook the bacon however you wish, but we like to bake ours. Line a large baking sheet with foil and add the bacon slices to a wire baking rack which keeps them out of the grease.
    Make sure slices are not stacked on one another. Bake for 15-25 minutes or until slices are crisp and retain their shape when held up. You do not want to overcook your bacon so be sure to check on it at the 15-minute mark. Check on it in one-minute increments.
    Once cooked, carefully remove the pan from the oven. After bacon has cooled, chop it up into smaller bite-sized pieces. Allow the grease on the foil to also cool fully before throwing the foil out. You can also save the bacon fat in a food-safe tin for future cooking.
  • Cut off ends of onions and peel skin away. Slice onions into 1/4″ rings.
    Add butter, to skillet and heat. Place onion rings into the heated skillet. Sprinkle sugar, and balsamic vinegar, over the onions and cook over medium-low heat. Stir often to mix up onions and prevent any burning or sticking.
    Once onions begin to take on a golden color, sprinkle with salt, and stir. Cook for an additional 5 minutes. You do not need these to be too amber colored for this appetizer.
  • Slice your ciabatta bread stick(s) into 1/4″ thick slices. Line slices on a parchment-lined baking sheet. Bake at 350 degrees F. for 6-8 minutes or until slightly golden brown. Once toasted, remove from oven and cool for 3-4 minutes.
  • Add 1 tablespoon of ricotta cheese to each toast. Line with 4-5 slivered almonds each. Top with one hefty tablespoon of caramelized onions. Sprinkle each with 1/2 tablespoon of chopped bacon. Serve!


Nutritional values may vary and are meant to be a guide.
Store any leftovers in an airtight container in the refrigerator. These last up to 2 days for best taste when stored properly. 


Serving: 1crostini | Calories: 272cal | Carbohydrates: 12g | Protein: 4g | Fat: 23g | Saturated Fat: 10g | Cholesterol: 30mg | Sodium: 157mg | Potassium: 67mg | Fiber: 1g | Sugar: 2g | Vitamin A: 123IU | Vitamin C: 1mg | Calcium: 49mg | Iron: 1mg