In the bowl of a stand mixer, add the warm water, yeast and sugar. With the whisk attachment added, stir to just combine. Let the mixture sit for 5 to 10 minutes until foamy.
1 cup warm water, 2 ¼ teaspoons active dry yeast, ¼ cup granulated sugar
Add 2 cups of the all purpose flour and salt, whisk to combine.
5 to 5 ½ cups all-purpose flour, 1 teaspoon kosher salt
Add the eggs, egg yolk, and avocado oil, and whisk until smooth.
2 large eggs, 1 large egg yolk, ¼ cup avocado oil
Switch out your whisk attachment for your dough hook attachment.
Slowly incorporate the remaining flour by adding ½ cup of flour at a time, until a slightly sticky dough comes together and pulls away from the sides of the bowl.
Knead with a dough hook or by hand for 8 to 10 minutes until the dough is smooth, elastic, and slightly tacky but not sticky. Add flour if needed.
Turn the dough out onto a clean dry surface. Grease your mixing bowl and transfer your dough back into the bowl. Cover and let rise until doubled in size, about 90 minutes.