Whisk the Wets: Preheat your oven to 350°F (180°C) and generously grease your donut pan with olive oil or cooking spray.In one large bowl, whisk together ½ cup Greek yogurt, ½ cup sugar, ¼ cup milk, 1 large egg, 1 tablespoon olive oil, 1 teaspoon vanilla extract, and 1 teaspoon lemon zest until the mixture is completely smooth and pale.
Add the Dry: Directly into the same bowl, sift in 1 cup all-purpose flour, 1½ teaspoon baking powder, and ¼ teaspoon salt. Stir dry ingredients into the wet ingredients with a spoon. Don't overmix! Stop as soon as you see no more dry flour streaks. Some lumps are ok.
Fill the Pan: Carefully pour the batter into the donut molds, filling them about 3/4 full. You can use small spoons or a piping bag.If the batter is a bit stubborn when pouring, use a small teaspoon to help guide it into the ring of the donut pan. It doesn't have to be perfect; the oven heat will level it out!
Bake: Bake for 10–12 minutes at 350°F (180°C). They should be springy to the touch. Let them cool for a few minutes before flipping them out.Sift 1 tablespoon powdered sugar on top or use your favorite icing.
Substitutions
Flour → Whole wheat flour, gluten-free blend
Baking powder → No good substitute (use fresh)
Salt → Reduce or omit
Greek yogurt → Low-fat Greek yogurt, Skyr
Sugar → Coconut sugar, light brown sugar
Milk → Almond milk, oat milk, soy milk
Egg → Flax egg, egg replacer
Olive oil → Sunflower oil, melted butter
Vanilla extract → Almond extract, orange zest
Lemon zest → Cinnamon
Powdered sugar → Skip, or use glaze
Tips
Don’t overmix → Stir just until combined for soft, tender donuts
Grease well → Donuts release clean (don’t forget the center ring)
Fill ¾ full → Prevent overflow, perfect rise
Don’t overbake → Check at ~10 min; should be springy
Cool slightly → Helps them set and come out intact
Use fresh lemon zest → Big boost in aroma and flavor
Not into lemon? → Swap with cinnamon or orange zest
Store smart → Keep in an airtight container 2–3 days (fridge for longer)