Mix soy sauce, sugar, sake, ginger and dashi stock, then pour into the pot. Top with water or more dashi broth until the daikon are just submerged in the liquid
1 TBSP gluten free tamari soy sauce, 1 tsp sugar, 2 TBSP sake, 1 tsp minced ginger, 2 cups dashi stock, 5-6 2-in thick discs of daikon