01 - Preheat oven to 350°F. Grease a bundt pan or deep round baking dish thoroughly.
02 - In a large bowl, mix almond flour, 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 uniform.
04 - Pour wet ingredients into dry ingredients. Stir until a soft, cohesive dough forms.
05 - In a small bowl, combine erythritol and cinnamon for the coating mixture.
06 - Pinch off small pieces of dough (about 1 inch), roll into balls. Dip each ball in melted butter or coconut oil, then coat thoroughly in cinnamon mixture.
07 - Arrange coated dough balls in prepared pan, leaving space between pieces for expansion during baking.
08 - Bake for 25-30 minutes until golden brown and set in center.
09 - Let cool in pan for 10 minutes before removing.
10 - Whisk Greek yogurt, powdered erythritol, and vanilla until smooth. Drizzle over warm bread before serving.