01 - Preheat oven to 350°F. Grease a bundt pan or deep round baking dish thoroughly.
02 - In a large bowl, combine almond flour, protein powder, baking powder, and salt. Mix until uniformly blended.
03 - In a separate bowl, whisk Greek yogurt, eggs, almond milk, melted coconut oil, and vanilla extract until completely smooth.
04 - Pour wet ingredients into dry ingredients. Stir until a soft, cohesive dough forms.
05 - In a small bowl, combine erythritol and cinnamon. Mix well to distribute evenly.
06 - Pinch off approximately 1-inch pieces of dough and roll into balls. Dip each ball in melted butter or coconut oil, then coat thoroughly in cinnamon mixture.
07 - Place coated dough balls in prepared pan, layering them with slight space between for expansion during baking.
08 - Bake for 25-30 minutes until golden brown and set throughout.
09 - Allow to cool in pan for 10 minutes before removing.
10 - Whisk together Greek yogurt, powdered erythritol, and vanilla extract until smooth. Drizzle over warm bread prior to serving.