This Blueberry Breakfast Cake is a total crowd-pleasing breakfast. As written, the recipe makes one cake, but you can easily scale up to serve your whole family or batch cook for the week.
Add the oats, lemon zest, baking powder, honey, egg, vanilla extract, and nut milk to a blender and blend until completely incorporated into a batter, about 1 minute.
Pour the batter into a ramekin or divide it among the wells of a muffin tin. Any oven-safe dish will work, as long as the batter fills no more than 3/4 of the dish (the batter will rise and expand in the oven). Top with the blueberries.
Bake for 30 minutes or until the center of the cake is set and no longer jiggly.