Combine the flour, baking powder, and salt in a bowl, then mix well. Set aside.
1 3/4 cups flour, 1 tablespoon baking powder, 1/2 teaspoon salt
Combine the peanut butter and vegetable shortening in a separate bowl, then whisk until well blended.
1/2 cup peanut butter, 1/4 cup vegetable shortening
Gradually add the sugar while whisking, then continue to mix for 3 minutes.
3/4 cup granulated white sugar
Add the eggs and vanilla extract, then continue mixing until all ingredients are well incorporated.
2 pieces eggs, 1 teaspoon vanilla extract
Add the flour mixture and milk alternately, beginning and ending with the flour mixture. Continue whisking for 3 more minutes until the batter is smooth.
1 3/4 cups flour, 1 cup fresh milk or evaporated milk
Preheat the oven to 350 degrees Fahrenheit.
Line the cupcake or muffin pan with muffin cups, then pour the batter into each cup, filling about two-thirds full.
Bake for 16 to 20 minutes or until a toothpick inserted in the center comes out clean.
Remove the cupcakes from the oven and place them on a wire rack to cool completely.
Spread Nutella generously on top of each cupcake.
Nutella
Arrange the cupcakes on a serving tray and serve.