Preheat oven to 350°F (175°C).

Sift flour, sugar, baking powder, and salt into a large bowl.

In a separate bowl, whisk together eggs, melted shortening, and vanilla.

Add mincemeat and minced nuts to the wet ingredients and stir to combine.

Pour the wet ingredients into the dry ingredients and stir until just moistened.

Pour batter into a greased and floured loaf pan.

Bake for 30-35 minutes, or until a wooden skewer inserted into the center comes out clean.

Let cool in the pan for 10 minutes before transferring to a wire rack to cool completely.