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a plate of caramelized onion and everything bagel biscuits
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5 from 5 votes

Caramelized Onion and Everything Bagel Biscuits

These caramelized onion and everything bagel biscuits are so delicious and flaky. They can be made regular or vegan and are perfect for a breakfast sandwich, dinner side or on their own!
Prep Time10 minutes
Cook Time1 hour
Total Time1 hour 10 minutes
Course: Appetizer, Breakfast, Side Dish
Cuisine: American
Keyword: buttermilk biscuits, caramelized onion biscuits, everything bagel biscuits, everything bagel spice biscuits, vegan biscuits, vegan caramelized onion biscuits, vegan everything bagel biscuits
Servings: 8 biscuits
Cost: -


  • 2 cups all purpose flour
  • 1 tbsp baking powder
  • 1 tsp salt
  • 3/4 cup buttermilk regular or dairy free, see notes for homemade
  • 1 stick cold butter regular or vegan
  • 2 tbsp melted butter for brushing
  • 1 yellow or sweet onion thinly sliced
  • 1 tbsp oil
  • 1 cup white wine
  • everything bagel seasoning


  • In a large sauté pan, heat 1 tbsp of oil over medium low heat. Add sliced onions and cook for approximately 5 minutes, until onions start to get soft and fragrant.
  • Begin to add white wine, 1/4 cup at a time. Stir onions occasionally. Wait until first 1/4 cup of wine has dissolved before adding the next.
  • Cook onions until very soft and deeply golden in color, approximately 35-40 minutes. Place caramelized onions in a bowl and cool completely in the refrigerator. When ready to use, roughly chop caramelized onions.
  • In a large mixing bowl, combine flour, baking powder and salt. Cut cold butter into cubes and add to the flour mixture. Use a pastry blender to 'cut' the butter into the flour until pea sized pieces of butter remain.
  • Next, add cold buttermilk and caramelized onions. Mix just until a shaggy dough forms. Turn out dough onto floured surface. Work quickly, and if needed, fold excess flour into dough with a few kneads. Using your hands, form dough into a one inch thick rectangle. Use a biscuit cutter or the top of a drinking glass to cut out 4 biscuits.
  • Take excess dough and shape into another one inch thick rectangle. Cut biscuits and repeat until all dough is used. Place biscuits on a parchment lined baking sheet. If needed, chill biscuits in the fridge before proceeding.
  • Preheat oven to 425°F degrees. Brush the tops of each biscuit with melted butter. Sprinkle tops of biscuits with everything bagel seasoning.
  • Bake biscuits for 20-25 minutes, until fluffy and golden. Allow to cool for 5 minutes before enjoying.


  1. To measure flour, use a spoon to scoop the flour into the measuring cup. Level the top of the flour with the straight edge of a butter knife. Avoid scooping the flour from the container with the measuring cup. 
  2. Place stick of butter in the freezer for at least 10 minutes before using.
  3. Keep buttermilk in the refrigerator until ready to use.
  4. To make homemade buttermilk, add 2 teaspoons of lemon juice or white vinegar to 3/4 cup regular or plant based milk. Stir and let sit in the fridge for at least 5 minutes, or until ready to use.
  5. If you are using a biscuit cutter that is 3 inches in diameter, you should get 8 biscuits.