Give an example of using customary measurement units

Baking a cake using customary measurement units:

Ingredients:
- 2 cups of all-purpose flour
- 2 tsp of baking powder
- 1/2 tsp of salt
- 1/3 cup of unsalted butter
- 1 cup of granulated sugar
- 2 large eggs
- 1 tsp of vanilla extract
- 1/2 cup of milk

Instructions:
1. Preheat the oven to 350°F.
2. In a medium bowl, mix together the flour, baking powder, and salt. Set aside.
3. In a separate bowl, cream together the butter and sugar until smooth.
4. Beat in the eggs one at a time, then stir in the vanilla extract.
5. Gradually mix in the dry ingredients until just blended.
6. Pour in the milk and mix until smooth.
7. Pour the batter into a greased, 9-inch cake pan.
8. Bake for 30 to 35 minutes, or until a toothpick inserted into the center of the cake comes out clean.
9. Let the cake cool completely before serving.

In this example, we used customary measurement units such as cups, teaspoons, and ounces to measure out the ingredients for the cake recipe.