Curry Sweet Potato Empanadas with Green Chutney

Name: Curry Sweet Potato Empanadas with Green Chutney
Ingredients: 2 tbsp olive oil; 2 shallots (diced); 2 large sweet potatoes (peeled and diced); 1/2 cup frozen sweet peas; 1 tsp yellow curry; 1.5 tbsp brown sugar; salt; flaky salt; water; 1 egg white (whisked); 1 pack frozen empanadas, thawed ((such as goya)); 2 cups fresh cilantro (chopped); 1 cup fresh mint (chopped); 4 garlic cloves (chopped); 1 serrano pepper (chopped); 1 green apple (chopped); 1 1 inch nub ginger (peeled and chopped); 1/4 tsp cumin; 1/2 cup water; 2 pinches salt