Preheat oven to 350F. Prepare muffin tin with nonstick spray or line with cupcake liners.

In a large bowl or stand mixer. Combine softened butter and sugars mixing until fully combined. Mix in eggs and pumpkin puree.

Add the dry ingredients into the wet ingredients, then fold everything together gently just until combined. Stir in chocolate chips is using, take care not to over mix.

Bake at 350 for 20 - 25 minutes or until a toothpick inserted in the center comes out clean.