Ingredients

For the Cob Loaf

• 1 large round cob loaf (sourdough or crusty country bread)
• Bread removed from the center, cut into bite-sized cubes

For the Dip

• 2 tablespoons butter
• 2 large yellow onions, thinly sliced
• 2 cloves garlic, minced
• 8 ounces (225g) cream cheese, softened
• 1 cup sour cream
• ½ cup mayonnaise
• 1 cup frozen chopped spinach, thawed and well-drained
• 1 cup shredded mozzarella cheese
• ½ cup grated Parmesan cheese
• 1 teaspoon Worcestershire sauce
• 1 teaspoon dried thyme
• ½ teaspoon onion powder
• ½ teaspoon garlic powder
• Salt and freshly ground black pepper, to taste

Optional Toppings

• Chopped fresh parsley
• Chopped chives
• Extra Parmesan cheese
• Cracked black pepper
• Red pepper flakes for a little heat

Equipment

• Baking tray
• Large skillet
• Mixing bowl
• Sharp bread knife
• Spoon
• Aluminum foil
• Measuring cups and spoons

Instructions

Step 1: Prepare the Cob Loaf

Preheat your oven to 375°F (190°C).

Using a sharp bread knife, cut the top off the cob loaf and set it aside.

Carefully hollow out the center, leaving about a 1-inch thick shell.

Cut the removed bread into bite-sized cubes for dipping.

Place the bread bowl and cubes on a baking tray.

Step 2: Caramelize the Onions

Heat the butter in a large skillet over medium-low heat.

Add the sliced onions and cook slowly for 20–25 minutes, stirring occasionally, until deeply golden and caramelized.

Add the minced garlic and cook for another 1 minute until fragrant.

Allow the onions to cool slightly.

Step 3: Prepare the Dip

In a large mixing bowl, combine:

• Cream cheese
• Sour cream
• Mayonnaise

Mix until smooth.

Fold in:

• Caramelized onions
• Spinach
• Mozzarella cheese
• Parmesan cheese
• Worcestershire sauce
• Thyme
• Onion powder
• Garlic powder

Season with salt and black pepper to taste.

Mix until everything is evenly combined.

Step 4: Fill the Bread Bowl

Spoon the dip into the hollowed cob loaf, spreading it evenly.

Sprinkle a little extra mozzarella and Parmesan cheese over the top if desired.

Wrap the loaf loosely with aluminum foil, leaving the top exposed.

Step 5: Bake

Bake for 25–30 minutes, or until the dip is hot and bubbling.

During the last 10 minutes, place the bread cubes on the baking tray to toast until lightly golden and crisp.

Remove the foil for the final 5 minutes if you’d like a more golden, cheesy top.

Step 6: Garnish and Serve

Remove the cob loaf from the oven.

Sprinkle with:

• Fresh parsley
• Chopped chives
• Extra Parmesan cheese
• Cracked black pepper

Serve immediately with the toasted bread cubes, crackers, or fresh vegetables.

Tips for the Best Spinach French Onion Cob Dip

• Drain the spinach thoroughly to avoid a watery dip.
• Take your time caramelizing the onions for the richest flavor.
• Use freshly grated cheese for smoother melting.
• Toast the bread cubes while the dip bakes for the perfect crunchy accompaniment.
• Serve warm for the creamiest texture.

Flavor Variations

Bacon Spinach Cob Dip

Stir in ½ cup crispy crumbled bacon for a smoky, savory twist.

Spicy Cob Dip

Add chopped jalapeños, crushed red pepper flakes, or a dash of hot sauce.

Mushroom French Onion Dip

Sauté sliced mushrooms with the onions for an earthy, hearty flavor.

Three-Cheese Cob Dip

Add Gruyère, sharp cheddar, and mozzarella for an extra cheesy version.

Artichoke Spinach Cob Dip

Mix in chopped marinated artichoke hearts for a classic spinach-artichoke variation.

Storage

Store leftover dip in an airtight container in the refrigerator for up to 3 days.

Keep any leftover bread cubes separately to maintain their crispness.

Reheating

Oven

Transfer the dip to an oven-safe dish and bake at 350°F (175°C) for 15–20 minutes, or until hot.

Microwave

Heat in 30-second intervals, stirring between each, until warmed through.

Serving Suggestions

This Spinach French Onion Cob Dip pairs perfectly with:

• Toasted bread cubes
• Crackers
• Tortilla chips
• Pretzels
• Carrot sticks
• Celery sticks
• Cucumber slices
• Bell pepper strips
• Cherry tomatoes
• Grilled sausages
• Charcuterie boards

Nutrition (Approximate Per Serving)

• Calories: 360
• Protein: 10g
• Carbohydrates: 22g
• Fat: 26g
• Saturated Fat: 12g
• Fiber: 2g
• Sugar: 4g
• Sodium: 540mg

This Spinach French Onion Cob Dip is the ultimate party appetizer, combining sweet caramelized onions, creamy cheeses, and tender spinach in a warm, crusty bread bowl. Rich, comforting, and perfect for sharing, it’s sure to become a favorite at holidays, game days, potlucks, and family celebrations.