Honey Oat Challah – Gluten Free - Kosher Everyday

Ingredients

• 4 tablespoons yeast
• 2 tablespoons sugar
• 1 cup warm water
• 9 cups (1150g) certified gluten free oat flour (whisk to remove lumps)
• 1 1/3 cup (195g) tapioca flour (starch)
• 2 2/3 cup (450g) potato starch
• 2 tablespoons xanthan gum
• 1/2 cup sugar
• 1 cup honey
• 2 teaspsoons salt
• 8 large eggs
• 1 cup canola oil
• 2 cups seltzer
• 2 large egg
• 2 tablespoons warm water
• sesame seeds, poppy seeds, dried onion (optional)