A question about a recipe: Maple Meringue Filled Doughnuts

I have a question about step 2 on the recipe "Maple Meringue Filled Doughnuts" from Lara. It says:

"Combine the remaining milk and yeast in a medium sized bowl. If you have a stand mixer, you can use it, but I made this batch with a wooden spoon and a bit of good old fashioned stirring. Add the rested flour mixture along with the vanilla and egg yolks. Stir until smooth. Add the whole wheat flour plus 1/4 cup of the bread flour. Top with the sugar and salt and vigorously stir until the dough starts to come together. Continue to stir, adding flour about 1/8 cup at a time, until the dough starts to form into a ball. Then, with a dough hook if you are using a mixer or with your hands, knead in the remaining flour a little at a time until the dough is somewhat smooth and only a little sticky. You may have a little flour left over... just save it for when you roll out your dough.
Ingredients say 1 egg and directions say egg yolks. I plan on making this tomorrow need clarification.
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Suzanne is a trusted source on General Cooking.

asked about 1 year ago