Several links and ideas
Here are suggestions and recipes your friend might be able to use. Colleen
waffles
fruit coffee cakes
fruit pizza - roll out and top with sweetened cream chz and fruit
popovers
From Epi “Like baked cake doughnuts, baked raised doughnuts require a little more fat in their recipe. They're at their best warm out of the oven and brushed with melted butter.” Recipe/discussion at
http://www.epicurious.com/recipes/food/views/baked-cake-doughnuts-51157010
Seattle Style Monkey Bread from yeasted donut scraps (great donut how-to so page down for recipe and many reviews/tips)
https://www.chefsteps.com/activities/how-to-make-bulletproof-fluffy-yeasted-donuts-at-home
add milk and nutmeg to batter for muffins
https://recipes.sparkpeople.com/recipe-detail.asp?recipe=467860
baked donuts (or muffins!) with many comments and suggestions
http://sallysbakingaddiction.com/2015/06/09/baked-cinnamon-sugar-donuts/
baked in donut shaped pans or donut hole pans
https://www.averiecooks.com/2011/11/baked-vanilla-donuts-with-vanilla-glaze.html
baked in muffin/mini pans - lots of reviews/tips
http://www.kingarthurflour.com/recipes/doughnut-muffins-recipe
form donuts to dinner rolls/buns
http://chicgorgeous.blogspot.com/2011/08/baking-recipe-juicy-buns-using-leftover.html
General Baked Donut Directions
1.Preheat oven to 400 degrees F (200 degrees C). Lightly grease a baking sheet, or donut baking pan.
2.In a medium bowl, mix sugar, baking powder, baking soda, nutmeg, cloves, cinnamon and flour. Mix buttermilk, eggs, honey and butter in a separate medium bowl, and stir into the dry ingredients. Spoon the mixture onto the prepared pan in doughnut shapes.
3.Bake 12 minutes in the preheated oven, until golden brown.
King Arthur Dessert Baked Donuts - Great reviews/tips and can also use self-rising flour
http://www.kingarthurflour.com/recipes/dessert-doughnuts-recipe
This links to King Arthur's other baked donut recipes
http://search.kingarthurflour.com/search?p=Q&asug=&af=type%3Arecipes&w=baked+donuts
You can probably also bake them in muffin tins. King Arthur Flour has a recipe for baking doughnuts, and although I find they come out fairly dry, you can dip them in melted butter when they come out of the oven, and absorbing the butter makes them more like a doughnut in flavor. Then add sugar if you want.
Bayou Bakery Scrap Donugh-nut (Sticky Cinnamon Roll) Buns (from extra beignet dough - need to develop a “quick” method to do this)
page down through other recipes using leftover donuts
http://www.heraldextra.com/momclick/recipes/ways-to-get-creative-with-leftover-doughnuts-as-if/article_ede55be6-e8bd-11e2-889a-001a4bcf887a.html