Farinata (Italian Flatbread)

Step 1
Preheat the oven to 400 degrees F (200 degrees C). Brush a 9-inch tart pan with 2 tablespoons olive oil and place in the oven to warm up.

Step 2
Melt 1 tablespoon butter in a medium skillet over medium heat. Add green onion and garlic. Cook and stir until softened, about 5 minutes. Remove from heat.

Step 3
Mix chickpea flour with lukewarm water until smooth. Set aside for 20 minutes at room temperature.

Step 4
Skim foam from the top of chickpea-water mixture. Add remaining 2 tablespoons of olive oil. Mix in onion-garlic mixture. Season with salt, pepper, and nutmeg. Add Gruyere cheese and mix well. Remove tart tin from oven and pour in chickpea mixture.

Step 5
Bake it in the preheated oven until crispy, about 15 minutes. Remove from the oven and cut into triangles before serving.