Oyakodon: japanese chicken and egg rice bowl

Ingredients

• 100 g chicken, cut into bite sized pieces
• medium, white onion, sliced
• 2 eggs, lightly beaten and divided
• 2/3 cup dashi soup
• 1 1/2 tablespoon soysauce
• 1 1/2 tablespoon sake
• 1 tablespoon sugar
• 1 tablespoon mirin
• Japanese Parsely