In a large bowl, mix together the eggs, oil, extracts, milk, and sugar.
Add in 5 cups of flour and baking powder. The dough should be firm and not sticky. If necessary, add in more flour.
Chill your bowl full of dough for 30 minutes to cool and turn the dough out onto a floured surface. Add flour to your hands and begin shaping your cookies. If your dough is sticking to your hands add in more flour.
Place your dough onto a prepared baking sheet and bake at 350 degrees F for 10-14 minutes. When finished cookies will be lightly golden brown on the bottom. Cool.
To make the glaze
In a small bowl, mix together the powdered sugar, vanilla, and milk and stir until well combined and there are no lumps. If needed, add in more powdered sugar to get a good consistency so that the glazes coats the cookies, dripping down gently on the sides.
Dip your cookies in the glaze and lay them back on the baking sheet to set. If desired, you can top with sprinkles while the glaze is wet. Store cookies in an airtight container.