Preheat oven to 350°F (175°C). Grease the doughnut pan like your life depends on it.
Mix flour, sugar, baking powder, baking soda, cinnamon, and salt in a large bowl.
Whisk almond milk, coffee, oil, vanilla, and vinegar in a separate bowl.
Pour wet mix into dry ingredients and stir until smooth. No overthinking allowed.
Spoon batter into doughnut pan, filling each well about ¾ full.
Bake 15 minutes, or until firm and lightly golden. Let them cool like your DMs.
For filling: beat vegan butter, powdered sugar, espresso powder, brewed espresso, and vanilla until creamy.
Add plant milk a teaspoon at a time for pipeable consistency.
Transfer espresso cream into a piping bag.
Once doughnuts cool, poke and fill each one with the espresso cream. Be generous—it’s your day.