Preheat your oven to 350F.

In a mixing bowl, add your butter and sweetener. Cream it together until smooth.

Add 2 of your eggs and continue mixing it until combined, then add and mix in your last 2 eggs.

Grind up your spices, then add all the dry ingredients to the batter. Mix until smooth.

Add your water to the batter and mix well, until it is creamy.

Spray your cupcake tray, fill it about 3/4 of the way up, and put them in the oven for 15 minutes.

While they're cooking, cream together your cream cheese, butter, sweetener, vanilla, and lemon zest for the frosting.

Remove your cupcakes from the oven, let them cool for 15 minutes, and then frost them.