Preheat oven to 350°F and lightly grease a donut pan.
Prepare pancake batter according to package directions using water or plant-based milk.
Spoon or pipe batter into donut pan, filling about 3/4 full.
Add mix-ins on top of each donut and lightly press them into the batter.
Bake for 10–14 minutes, or until set and lightly golden.
Let cool slightly before removing from pan and serving.