01 - Preheat oven to 350°F (175°C). Generously grease a bundt pan or deep round baking dish with butter or coconut oil.
02 - In a large mixing bowl, whisk together almond flour, vanilla whey protein powder, baking powder, and salt until well blended.
03 - In a separate bowl, whisk Greek yogurt, eggs, almond milk, melted coconut oil, and vanilla extract until smooth and creamy.
04 - Pour wet ingredients into dry ingredients and stir with a spatula until a soft, cohesive dough forms.
05 - In a small shallow bowl, combine granular erythritol and ground cinnamon, mixing thoroughly.
06 - Pinch off approximately 1-inch pieces of dough and roll into balls. Dip each ball in melted butter, then roll in cinnamon mixture to coat evenly.
07 - Layer coated dough balls in prepared pan, spacing slightly apart to allow for expansion during baking.
08 - Bake for 25-30 minutes until golden brown and set. A toothpick inserted should come out clean.
09 - Remove from oven and let cool in pan for 10 minutes before inverting onto serving plate.
10 - Whisk together Greek yogurt, powdered erythritol, and vanilla until smooth. Drizzle glaze over warm bread and serve immediately.