← BlogJune 28, 2026

How to Make the Perfect Bloomin Onion Bread

American · Easy · 40 min · 6 servings

vegetarian
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Bloomin Onion Bread

A crusty sourdough loaf is sliced into a bloomin pattern and stuffed with cheese and savory herbs. Pull apart each cheesy segment for a show stopping shareable bread.

Why this recipe works

This Bloomin Onion Bread recipe has been crafted to deliver restaurant-quality results in your home kitchen. At just 40 minutes from start to finish, it fits perfectly into a busy schedule without sacrificing flavor. Each serving comes in at 410 calories with 16g of protein, making it a balanced choice for any meal.

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What you will need

This recipe uses 8 simple ingredients that you can find at any grocery store:

  • 1 large round sourdough loaf
  • 2 cups shredded mozzarella cheese
  • 0.5 cup shredded cheddar cheese
  • 4 tbsp unsalted butter
  • 3 cloves garlic minced
  • 1 medium yellow onion finely diced
  • 2 tbsp fresh parsley chopped
  • 0.5 tsp red pepper flakes

Step by step instructions

Step 1: Preheat Oven and Score Bread

Preheat oven to 375 degrees F. Place the sourdough loaf on a cutting board. Using a serrated knife, make deep cuts across the loaf in a grid pattern about 1 inch apart, cutting almost but not all the way through the bottom crust to keep the loaf intact.

Step 2: Cook the Onion Garlic Butter

Melt butter in a small skillet over medium heat. Add diced onion and cook for 5 minutes until softened and translucent. Add minced garlic and red pepper flakes and cook for 1 more minute. Remove from heat and stir in parsley.

Step 3: Stuff the Bread

Place the scored loaf on a large piece of aluminum foil. Carefully open each cut section and spoon the onion garlic butter mixture deep into every crevice. Stuff both mozzarella and cheddar cheese generously into every gap so cheese is visible throughout.

Step 4: Wrap and Bake

Wrap the stuffed loaf tightly in foil and place on a baking sheet. Bake at 375 degrees F for 15 minutes. Then open the foil and bake uncovered for an additional 10 minutes until the cheese is fully melted and the top is golden.

Step 5: Serve Immediately

Transfer the loaf to a serving board. Garnish with extra fresh parsley. Serve right away while the cheese is hot and melted, encouraging guests to pull apart individual segments directly from the loaf.

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Easy substitutions

Missing an ingredient? Here are some swaps that work perfectly:

  • sourdough loaf → Italian round bread for a softer texture
  • mozzarella cheese → Gruyere cheese for a nuttier richer flavor
  • fresh parsley → fresh chives for a mild onion herb finish

Common mistakes to avoid

Watch out for these pitfalls that can affect your results:

  • Cutting all the way through the bottom which causes the loaf to fall apart
  • Not stuffing cheese deep enough into cuts leaving dry pockets inside
  • Skipping the foil wrap phase which causes the outside to burn before cheese melts

Nutrition facts

Per serving: 410 calories, 16g protein, 42g carbs, 20g fat, 2g fiber.

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