Combine 1/4 cup warmed water with yeast and sugar. Set aside until foamy. If your yeast does not foam up, do not proceed to the next step. This means your yeast is not active.
Once the yeast mixture is foamy combine all yeast mixture, milk, butter, egg, salt, and 5 cups of flour. Mix to combine, adding in additional flour until the mixture pulls away from the bowl.
Knead mixture for 7-10 minutes, or until the dough is smooth. Shape into a ball, place back into bowl, cover, and let rise for an hour, until doubled.
Place dough onto counter and divide into 2 sections. Roll each section into a rectangular shape and cut out your donuts. I use a large mouth mason jar ring and then a piping tip for the inside hole. You can also purchase a donut cutter.
Place dough onto individual parchment squares, cover, and let dough rise for another 30-60 minutes.
While dough is rising heat your oil in a large pan to 350F. Use a candy thermometer to ensure your oil is at the perfect temperature.
Gently place 2-3 donuts into hot oil at a time (you don't want to crowd the donuts) and fry for 2-3 minutes, before flipping and frying for an additional 2-3 minutes. The donuts should be nice and golden brown.
Remove donuts to a cooling rack to allow extra grease to drain and to cool.
In a small bowl combine maple glaze ingredients. Once donuts have cooled enough to handle dip into maple glaze and place back onto the cooling rack.
Enjoy immediately or store in an airtight container for 2-3 days.