Into the bowl of your stand mixer, add the yeast, sugar, and lukewarm water. Allow the mix to stand for 5 minutes and you will notice the yeast begin to foam, and a frothy layer forms across the top.
Add in the eggs, egg yolk, and oil and mix until well combind
Add in the spelt flour, xanthan gum, and salt. Knead for 5 minutes on low speed and then increase the speed and mix for a further 6- 8 minutes or until you are left with a soft, smooth, and elastic dough.
Turn the dough out onto a lightly floured surface to bring everything together with your hands until it holds a ball shape - I prefer to include this step.(Please note that if the dough seems too sticky, add a little more flour at a time but do not add too much or you will be left with a dry finished product) Place the dough into a bowl and cover with plastic wrap and allow it to rise in a warm spot for around 1½ - 2 hours or until the dough has doubled in size.
Turn out the dough onto a lightly floured surface. This quantity of dough will give you one large loaf or 2 smaller loaves, depending on which you prefer.
1 Large Loaf - Divide the dough into 3 equal portions. (I prefer to use a scale as this ensures all 3 pieces are the same). Roll each piece of dough into a long rope of around 40cm in length.2 Smaller Loaves - Divide the dough into 3 equal portions. Roll each piece of dough into a long rope of around 20cm in length. The next step is braiding the dough. Braid the dough by gathering the 3 ropes of dough and squeezing them together at the top. Now you will loosely braid/plait the dough together. (Video attached in the blog under braiding)
Place the braided bread onto a baking tray lined with parchment paper. Allow the bread to rise in a warm place for around 1 hour or until the dough has doubled in size
Preheat the oven to 175°C, do this about 15-20 minutes prior to baking the bread.
When you are ready to bake the Challah, make the egg wash by whisking the reserved egg white with 1 tablespoon of water. Brush it onto the bread ensuring that the entire loaf is evenly coated. Sprinkle evenly with the sesame seeds.
Bake for 25-30 minutes or until a deep golden brown. A loaf that is fully cooked will make a hollow sound when tapped on the bottom.
Remove from oven and serve immediately or allow to cool depending on your preference. Hint: This bread is DELICIOUS when eaten warm.