In a medium bowl, mix together kimchi, kimchi juice, tomato sauce, mozzarella cheese, onion, bell pepper, garlic, red pepper flakes, and sugar. Add salt and pepper to taste.
Roll out the pizza dough on a lightly floured surface to a 12-inch circle.
Transfer the pizza dough to a greased baking sheet and spread the kimchi mixture evenly over the surface.
Bake for 15-20 minutes, or until the crust is golden brown and the cheese is melted and bubbly.
Allow the pizza to cool for a few minutes before slicing and serving.
Interesting Facts
Kimchi is a common side dish in Korean cuisine, made of fermented vegetables.
Kimchi is high in vitamins A, B, and C, as well as calcium and iron.
Kimchi has been found to have anti-inflammatory properties and may help improve digestion.