1. Preheat and Prepare Pan

• Preheat your oven to 350°F (175°C).

• Grease a 9×9-inch baking dish or line it with parchment paper.

2. Mix Dry Ingredients

• In a large bowl, whisk together flour, sugar, baking powder, and salt.

3. Combine Wet Ingredients

• In a separate bowl, mix milk, egg, melted butter, and vanilla extract until smooth.

4. Combine Batter

• Pour wet ingredients into the dry ingredients.

• Stir gently until just combined—avoid overmixing to keep the cake tender.

5. Spread Batter in Pan

• Evenly pour and spread the batter into the prepared baking dish.

6. Prepare and Add Topping

• In a small bowl, combine sugar and cinnamon.

• Sprinkle this mixture evenly over the batter surface.

• Dot with cubed cold butter, distributing it across the top.

7. Bake the Cake

• Bake for 30–35 minutes or until a toothpick inserted in the center comes out clean.

• The top should be golden brown and slightly crisp.

8. Cool and Serve

• Allow the cake to cool slightly before slicing.

• Serve warm alongside your favorite cup of coffee or tea.