01 - Preheat oven to 350°F. Grease a bundt pan or deep round baking dish thoroughly with butter or cooking spray.
02 - In a large mixing bowl, whisk together almond flour, vanilla whey protein powder, baking powder, and salt until evenly blended.
03 - In a separate bowl, whisk Greek yogurt, eggs, almond milk, melted coconut oil, and vanilla extract until smooth and fully incorporated.
04 - Pour wet ingredients into dry mixture. Stir with a spatula until a soft, cohesive dough forms. Avoid overmixing to prevent toughness.
05 - In a small bowl, combine erythritol and ground cinnamon. Mix well to distribute spices evenly.
06 - Pinch off approximately 1-inch pieces of dough and roll into balls. Dip each ball into melted butter or coconut oil, then coat thoroughly in the cinnamon mixture.
07 - Place coated dough balls in the prepared pan, stacking in layers. Leave slight space between pieces to allow for rising during baking.
08 - Bake for 25-30 minutes or until golden brown on top and set in the center. A toothpick inserted should come out clean.
09 - Let the bread cool in the pan for 10 minutes to allow structure to set.
10 - While bread cools, whisk together plain Greek yogurt, powdered erythritol, and vanilla extract until smooth and drizzle-consistency.
11 - Invert bread onto serving plate or serve directly from pan. Drizzle with prepared glaze while still warm. Pull apart pieces to serve.