Creating this Cinnamon Pear Cake can be simple if you follow these easy steps:

1. Preheat Oven: Start by preheating your oven to 350°F (175°C). Grease and flour a 9×13 inch baking pan or line it with parchment paper.
2. Mix Dry Ingredients: In a medium bowl, whisk together the flour, baking powder, baking soda, salt, cinnamon, and nutmeg until well combined.
3. Cream Butter and Sugars: In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy, about 3-4 minutes.
4. Add Eggs and Vanilla: Beat in the eggs one at a time, then stir in the vanilla extract until fully incorporated.
5. Combine Mixtures: Gradually add the dry ingredients to the wet mixture, alternating with the buttermilk. Start and end with the dry ingredients. Mix until just combined; do not overmix.
6. Fold in Pears and Nuts: Gently fold in the diced pears and nuts (if using) until evenly distributed throughout the batter.
7. Pour Batter: Pour the batter into the prepared baking pan, spreading it evenly with a spatula.
8. Bake: Place the pan in the preheated oven and bake for 40-45 minutes, or until a toothpick inserted in the center comes out clean.
9. Cool: Remove from the oven and let the cake cool in the pan for about 15-20 minutes. Then transfer it to a wire rack to cool completely.
10. Dust with Powdered Sugar: Once cooled, dust the top with powdered sugar before serving for a lovely finish.

These straightforward steps will help you create a delicious Cinnamon Pear Cake that will impress everyone!