Bagel Egg in a Hole with Smashed Avocado

Bahan-bahan (2 porsi)

• 1 whole grain bagel
• 1 tablespoon unsalted butter, (softened)
• 2 large eggs
• 1 small ripe Hass avocado
• 1/4 teaspoon kosher salt (plus additional to taste)
• 1/8 teaspoon ground black pepper
• 1/4 teaspoon red pepper flakes (optional)
• Chopped fresh herbs: cilantro (parsley, chives, etc.)