Savory French Toast with Caramelized Onions

1.To caramelize the onions: Heat olive oil and butter in a large skillet or Dutch oven over medium-low heat. Add the thinly sliced onions, salt, and pepper. Cook, stirring occasionally, for 30-40 minutes, or until the onions are deeply golden brown and very soft. If using, add brown sugar during the last 10 minutes of cooking to enhance caramelization. Remove from heat and set aside.

2.Prepare the French toast batter: In a shallow dish, whisk together the eggs, milk, Dijon mustard, garlic powder, smoked paprika, red pepper flakes (if using), salt, and pepper until well combined.

3.Dip the bread: Dip each slice of bread into the egg mixture, ensuring both sides are fully coated. Let any excess drip off.

4.Cook the French toast: Heat 1 tablespoon of butter or olive oil in a large non-stick skillet over medium heat. Once hot, add 2 slices of the coated bread. Cook for 3-4 minutes per side, or until golden brown and cooked through. Repeat with the remaining bread, adding more butter or oil as needed.

5.Assemble and serve: Place the cooked French toast on plates. Top generously with the warm caramelized onions. Garnish with fresh chives and grated Parmesan cheese, if desired. Serve immediately.