#### Cake Preparation
Preheat your oven to 350°F. Grease a Bundt pan with Crisco and dust with flour.
Sift the dry ingredients (flour, cinnamon, and baking powder) in a bowl.
In another bowl, cream butter and sugar until light and fluffy using a mixer.
Add eggs one at a time, beating well after each addition.
Gradually mix in the milk, yogurt, and dry ingredients until smooth.
Pour the batter into the prepared Bundt pan, filling it ¾ of the way.
Bake for 55–60 minutes or until a toothpick inserted in the center comes out clean.
Allow the cake to cool in the pan for 10 minutes, then transfer it to a cooling rack.
#### Cinnamon Sugar Coating
Combine sugar and cinnamon in a small bowl.
Brush the warm cake with melted butter and sprinkle generously with the cinnamon-sugar mixture.
#### Dulce de Leche Drizzle (Optional)
Warm the dulce de leche in the microwave for 15–20 seconds until pourable.
Drizzle over the cooled cake before serving.