Activate the Yeast: In a small bowl, mix the warm milk, sugar, and yeast. Stir gently and let sit for 5-10 minutes until the mixture is frothy.
Mix Dry Ingredients: In a large bowl, whisk together the gluten-free flour blend and salt.
Combine Wet Ingredients: In another bowl, beat the eggs and melted butter. Add the yeast mixture to the eggs and butter, and mix until combined. Form the Dough: Gradually add the wet ingredients into the dry ingredients. Mix until a sticky dough forms, using a hand mixer or stand mixer with a dough hook if necessary.
Knead the Dough: Knead the dough on low speed for 5-7 minutes using a stand mixer or by hand for about 5 minutes until it comes together.
Let the Dough Rise: Transfer the dough to a greased bowl, cover with plastic wrap or a damp towel, and allow it to rise in a warm place for 1-2 hours until it doubles in size.
Shape the Dough: Punch down the dough and shape it into a loaf. Place it into a greased loaf pan or brioche pan. Second Rise: Let the dough rise again for 30-60 minutes until it slightly exceeds the pan edges.
Bake the Brioche: Preheat the oven to 350°F (175°C). Bake for 30-40 minutes until the top is golden brown and the bread sounds hollow when tapped.
Cool: Remove the bread from the oven, let it cool for 10 minutes in the pan, and then transfer to a cooling rack to cool completely before slicing.